Al-Qaida-inspired militants seize Iraqi city of Tikrit, pushing deeper into Sunni areas

An Iraqi federal policeman stands guard as his colleague searches a car at a checkpoint in Baghdad, Iraq, Wednesday, June. 11, 2014. The Iraqi government has tightened its security measures after a stunning assault that exposed Iraq's eroding central authority, al-Qaida-inspired militants overran much of Mosul on Tuesday, seizing government buildings, pushing out security forces and capturing military vehicles as thousands of residents fled the Iraqi second-largest city. (AP Photo/ Karim Kadim) (The Associated Press)

In this Monday, June 9, 2014, image taken from video obtained from the Iraqi military, which has been authenticated based on its contents and other AP reporting, armed Iraqi soldiers take their positions during clashes with militants in the northern city of Mosul, Iraq. Insurgents pressed their efforts Tuesday to seize effective control of Mosul after Iraqi security forces abandoned their posts and militants overran the provincial government headquarters and other key buildings, dealing a serious blow to Baghdad’s attempts to tame a widening insurgency. (AP Photo/Iraqi Military via AP video) (The Associated Press)

Iraqi Foreign Minister Hoshyar Zebari reacts to the heat before a group photo during an EU-Arab league Foreign Ministers summit in Athens, on Wednesday, June 11, 2014. The fall of the major northern Iraqi city of Mosul to insurgents must push the country's leaders to work together and deal with the "mortal threat" facing Iraq, the country's foreign minister said Wednesday.(AP Photo/Petros Giannakouris) (The Associated Press)

Al-Qaida-inspired militants have pushed deeper into Iraq's Sunni heartland, conquering cities and towns that had largely been calm before the Americans withdrew less than three years ago and spreading fear that Prime Minister Nouri al-Maliki's government will be unable to stop the Islamic extremists as they press closer to Baghdad.

Fighters from the militant group known as the Islamic State of Iraq and the Levant on Wednesday took Saddam Hussein's hometown of Tikrit, as soldiers and security forces abandoned their posts and yielded ground once controlled by U.S. forces.

Only a day earlier, they seized control of much of Iraq's second-largest city, Mosul, sending an estimated half a million people fleeing from their homes. As in Tikrit, the Sunni militants were able to move in after police and military forces melted away after relatively brief clashes.

The group, which has seized wide swaths of territory, aims to create an Islamic emirate spanning both sides of the Iraq-Syria border.

The capture of Mosul — along with the fall of Tikrit and the militants' earlier seizure of the city of Fallujah and parts of Ramadi, the capital of western Anbar province — have undone hard-fought gains against insurgents in the years following the 2003 invasion by U.S.-led forces.

The White House said the security situation has deteriorated over the past 24 hours and that the United States was "deeply concerned" about ISIL's continued aggression.

There were no reliable estimates of casualties or the number of insurgents involved, though several hundred gunmen were in Tikrit and more were fighting on the outskirts, said Mizhar Fleih, the deputy head of the municipal council of nearby Samarra. An even larger number of militants likely would have been needed to secure Mosul, a much bigger city.

The militants gained entry to the Turkish consulate in Mosul and held captive 48 people, including diplomats, police, consulate employees and three children, according to an official in the office of Turkish Prime Minister Recep Tayyip Erdogan. Turkish officials believe the hostages are safe, he said Wednesday, speaking on condition of anonymity because he was not authorized to comment to reporters on the sensitive issue.

The White House said in a statement that Vice President Joe Biden spoke with Erdogan and called for the safe and immediate return of the Turkish personnel and family members. Turkish state-run Anadolu Agency reported that Erdogan convened an emergency Cabinet meeting.

U.N. Secretary-General Ban Ki-moon strongly condemned the abductions and the seizure of Iraqi territory by the militants, urging "the international community to unite in showing solidarity with Iraq as it confronts this serious security challenge."

"Terrorism must not be allowed to succeed in undoing the path towards democracy in Iraq," Ban said.

While the militants have advanced southward, Baghdad did not appear to be in imminent danger from a similar assault, although Sunni insurgents have stepped up car bombings and suicide attacks in the capital in recent months.

So far, ISIL fighters have stuck to the Sunni heartland and former Sunni insurgent strongholds where people are already alienated by the Shiite-led government over allegations of discrimination and mistreatment. The militants also would likely meet far stronger resistance, not only from government forces but by Shiite militias if they tried to advance on the capital.

Mosul, the capital of Ninevah province, and the neighboring Sunni-dominated province of Anbar share a long and porous border with Syria, where the Islamic State is also active.

Mosul's fall was a heavy defeat for al-Maliki. His Shiite-dominated political bloc came first in April 30 parliamentary elections — the first since the U.S. military withdrawal in 2011 — but failed to gain a majority, forcing him to try to build a governing coalition.

Without assigning direct blame, al-Maliki said a "conspiracy" led to the massive security failure that allowed militants to capture Mosul, and warned that members of the security forces who fled rather than stand up to the militants should be punished.

"We are working to solve the situation," al-Maliki said. "We are regrouping the armed forces that are in charge of clearing Ninevah from those terrorists."

Al-Maliki has pressed parliament to declare a state of emergency over the Mosul attack — a decision that could come as early as Thursday.

Iranian airlines cancelled all flights between Tehran and Baghdad due to security concerns, and the Islamic Republic has intensified security measures along its borders, Iran's official IRNA news agency reported.

Shiite powerhouse Iran has strong ties with Iraq's government. Some 17,000 Iranian pilgrims are in Iraq at any given time, the agency quoted Saeed Ohadi, the director of Iran's Hajj and Pilgrimage Organization, as saying.

White House spokesman Josh Earnest warned that the instability was rapidly becoming a humanitarian issue requiring a coordinated response by Iraq's leaders to halt ISIL's advance and wrest territory away from insurgents.

Earnest told reporters traveling with President Barack Obama that ISIL poses a "different kind of threat" to American interests than core al-Qaida, which had repeatedly and publicly vowed to attack U.S. soil. Still, he said the U.S. was watching the threat from ISIL "very carefully" because the group has proven itself to be violent and willing to consider attacking U.S. interests and American allies.

Tikrit residents said the militant group overran several police stations in the Sunni-dominated city. Two Iraqi security officials confirmed that the city, 130 kilometers (80 miles) north of Baghdad and the capital of Salahuddin province, was under ISIL's control and that the provincial governor was missing.

The major oil refinery in Beiji, located between Mosul and Tikrit, remained in government control, the officials said, speaking on condition of anonymity because they weren't authorized to talk to reporters. There were clashes and gunmen tried to take the town but were repelled in a rare success for Iraqi government forces protecting an important facility, the officials said.

In addition to being Saddam's hometown, Tikrit was a power base of his once-powerful Baath Party. The former dictator was captured by U.S. forces while hiding in a hole in the area and he is buried south of town in a tomb draped with the Saddam-era Iraqi flag.

The International Organization for Migration estimated that 500,000 people fled the Mosul area, with some seeking safety in the Ninevah countryside or the nearby semiautonomous Kurdish region. Getting into the latter has grown trickier, however, with migrants without family members already in the enclave needing to secure permission from Kurdish authorities, according to the IOM.

Foreign Minister Hoshyar Zebari said Mosul's fall must bring the country's leaders together to deal with the "serious, mortal threat" facing Iraq.

"We can push back on the terrorists ... and there would be a closer cooperation between Baghdad and the Kurdistan Regional Government to work together and try to flush out these foreign fighters," he said on the sidelines of a diplomatic meeting in Athens.

Mosul residents said gunmen went around knocking on doors there Wednesday, reassuring people they would not be harmed. The situation appeared calm but tense, they said.

Violence raged elsewhere in Iraq on Wednesday.

Police and hospital officials said a suicide bomber struck inside a tent where tribesmen were meeting to solve a dispute in Baghdad's Shiite Sadr City neighborhood, killing 31 and wounding 46.

Car bombs in Shiite areas elsewhere claimed another 17 and maimed dozens, officials said, speaking on condition of anonymity because they were not authorized to talk to the media. Car bombs and suicide attackers are favorite tools of the ISIL.

___

Schreck reported from Dubai, United Arab Emirates. Associated Press Writers Elena Becatoros in Athens, Qassim Abdul-Zahra in Boston, Desmond Butler in Istanbul, Josh Lederman in Washington and Edith M. Lederer at the United Nations contributed to this report.

___

Follow Adam Schreck on Twitter at www.twitter.com/adamschreck