ISTANBUL, Turkey (AP) _ Responding to Iraqi fire, U.S. warplanes bombed an Iraqi anti-aircraft artillery site in the northern no-fly zone on Thursday, a U.S. military statement said.

U.S. planes dropped precision-guided bombs on the site east of Mosul, 250 miles north of Baghdad, the Germany-based U.S. European Command said.

All planes left the area safely, it added.

On Wednesday, U.S. planes bombed an Iraqi surface-to-air missile site. One of the bombs missed its intended target, but did not result in civilian casualties or damage to civilian facilities, the command said.

Iraq has repeatedly claimed that the U.S. bombings have caused civilian casualties.

U.S. and British planes patrol no-fly zones in northern and southern Iraq, set up after the 1991 Persian Gulf War to protect Kurds and Shiites from the forces of Iraqi President Saddam Hussein.

Iraqi forces have challenged the planes since December.