The U.S. military says the Iraqi army has captured three suspected al-Qaida in Iraq leaders involved in roadside bomb attacks.

Statements Wednesday say the suspects were detained in separate operations north of Baghdad in Kirkuk province, and in the towns of Tarmiyah and Judaidah.

The military says U.S. Special Forces advised the Iraqi army in all three operations.

The U.S. military also says Iraqi special operations forces detained seven suspected criminals in and around Baghdad's Sadr City district, a stronghold of radical Shi'ite cleric Moqtada al-Sadr.

U.S. and Iraqi soldiers have been fighting Shi'ite militants in Sadr City in recent weeks as part of a crackdown on illegal militias.