Insurgents carried out an attack on Baghdad's Interior Ministry building early Monday, killing two police guards and wounding several others.
The attack lasted about 10 minutes, police Maj.Falah al-Hamdani said. Five police officers were wounded.
The guerrillas, who used rocket propelled grenades and automatic weapons, withdrew after the short clash. It was not clear if they suffered any casualties.
At least four U.S. Apache and Blackhawk helicopters could be seen flying over the area in central Baghdad after the firefight, including one with large Red Cross signs on the fuselage.
Insurgent frequently attack Iraqi security forces, but daytime attacks against heavily defended targets such as the Interior Ministry are rare, the AP reports.