Updated

Suicide bombings at a military base and a police station killed 13 members of the Iraqi security forces north of Baghdad on Tuesday, officials said.

In the deadlier of the attacks, two bombers struck: one blew himself up at the gate of the army facility in Tarmiyah town, and then the second set off his explosive belt among a crowd of soldiers who gathered after the earlier blast, police said.

The explosions killed nine soldiers and wounded another 24 people. Tarmiyah, a Sunni town and former insurgent stronghold, is about 30 miles north of Baghdad.

Half an hour later, police said another suicide bomber blew himself up inside a police station in Baghdad's northern suburbs of Taji, killing four policemen and wounding nine others.

Hospital officials confirmed the casualty figures for both attacks. All officials spoke on condition of anonymity because they were not authorized to speak to journalists.

There has been no claim of responsibility for the latest attacks. Al Qaeda's Iraq branch, which has been gaining strength in recent months, frequently targets security forces in an effort to undermine the Shiite-led government in Baghdad.

Tuesday's attacks bring the death toll for this month to at least 373, according to an Associated Press count. Many attacks may go unreported.