Israel arrested 40 Palestinians in a raid Tuesday while it also imposed new punishments on Hamas prisoners as the hunt expands for three Israeli teens who Israel believes Hamas operatives abducted in the West Bank.
Tuesday's arrests brought the total number of Palestinians detained since the teens disappeared Thursday to more than 200, most of them Hamas activists, the biggest West Bank crackdown on the militant group in almost a decade. Israel has vowed to exact a heavy price from Hamas, saying the aim of the military operation goes beyond searching for the boys.
In a statement Tuesday, Israeli Ambassador to the United Nations Ron Prosor condemned Hamas and expressed outrage at the international community for not understanding the danger of Hamas' new role in the Palestinian unity government.
"I ask the international community -- where are you? Where are you?" he said. "The kidnapping took place just 10 days after Fatah and Hamas formed a unity government. All those in the international community who rushed to bless this marriage, should look into the eyes of the heartbroken parents and have the courage to take responsibility by condemning the kidnapping."
Prosor said the international community "bought into a bad deal" and Israel is "paying for it."
"We have gotten a taste of the bitter tragedy that comes with Hamas in a Palestinian government," he said. "Terrorism is what they know, it is what they preach, and it is what they teach."
Prime Minister Benjamin Netanyahu convened his Security Cabinet, a group of senior government ministers, to discuss the crisis. During the three-hour meeting, the ministers agreed to worsen the conditions of Hamas prisoners Israel is holding, said an official familiar with the deliberations.
He would not elaborate, saying only that the operation to return the missing teens "continues and will be intensified." He spoke on condition of anonymity because the meeting was held behind closed doors.
The crisis has exacerbated already tense relations between Israel and the Palestinian government following the recent collapse of peace talks. Netanyahu has used the abduction to try to discredit Western-backed Palestinian President Mahmoud Abbas and the unity government Abbas formed with Hamas backing earlier this month. Israel has blamed Hamas for the apparent abductions, though it has not provided proof.
Netanyahu has expressed disappointment with what he considers to be a tepid international response to the kidnappings.
On Tuesday, he called on the international community to condemn Hamas, to support Israel's right to defend itself and to press Abbas "to end his pact with Hamas."
"Anybody who supports peace must tell the Palestinian Authority that they cannot build a government that is backed by the kidnappers of children and the murderers of innocents," Netanyahu said at a meeting with international Mideast envoy Tony Blair.
Abbas formed the unity government early this month to end a seven-year rift with Hamas. The Cabinet consists of Abbas loyalists, but Hamas has agreed to support it from the outside.
Tuesday's arrests took place around the northern West Bank city of Nablus, far from the southern city of Hebron, which has been the focus of the army's search so far. Israeli forces continued to restrict the movement of Palestinians around Hebron.
The army said it found hundreds of weapons and explosives in Nablus. It posted photos online of bullets, grenades, guns and other weapons it said it found.
"As long as our boys remain abducted, Hamas will feel pursued, paralyzed and threatened," said Lt. Col. Peter Lerner, an army spokesman.
Israel has made clear that the goals of the operation go beyond the search for the teens.
Israeli military commentator Alex Fishman wrote in the Israeli daily newspaper Yediot Ahronot that the apparent abduction created an opportunity "to suppress Hamas' strongholds in Palestinian Authority territory to the greatest extent possible."
The missing teens -- two 16-year-olds and a 19-year-old -- disappeared late Thursday at a hitchhiking junction in the West Bank on their way home from their religious school. The case has riveted the nation's attention, receiving around-the-clock coverage in local media.
A group of university students launched a viral campaign called "Bring Back Our Boys" to draw global attention to the fate of the three teens. The campaign, modeled after a similar effort in support of kidnapped Nigerian schoolgirls, includes a Twitter hashtag and a Facebook page that has generated more than 90,000 "likes."
Elizabeth Zlatkis, one of the organizers, said the effort is not meant to be political. "This is simply a cry out to the world to bring those boys back," she said. "We're only trying to do whatever we can to help the international community to put pressure to release those kids."
Rachelle Fraenkel, the mother of one of the missing teens, told reporters the parents of the three teens are thankful for the outpouring of public support. "We are asking for continued prayers," Fraenkel said.
Netanyahu claims Abbas is ultimately responsible for the fate of the teens, saying the attackers originated from territory under his control, and alleged the Palestinian leader's new alliance with the Islamic militants created an atmosphere that encouraged the apparent kidnapping.
Abbas aides have rejected Netanyahu's contention, saying Israel is in overall control of the West Bank.
Hamas has praised the kidnapping, but has not taken responsibility. In a statement Tuesday, the group said the detentions of Hamas members "will not stop it and it will not change its path."
In the Gaza Strip, Israeli warplanes struck three weapons manufacturing and storage sites and another militant site early Tuesday, in response to a rocket launched from Gaza to Israel late Monday, the army said. Hamas ruled Gaza for the seven years before the unity government was formed.
Fox News' Jonathan Wachtel and The Associated Press contributed to this report.