FACTBOX-Security developments in Iraq, March 4

March 4 (Reuters) - Following are security developments in Iraq at 1200 GMT on Tuesday.

BAGHDAD - U.S. and Iraqi forces were searching for an Iraqi MI-17 transport helicopter which disappeared in northern Iraq on Monday after being caught in a dust storm, Iraqi military officials said.

SAMARRA - A car bomb killed four children and two women, and wounded 10 on Monday in Huwaish area, near Samarra, 100 km (60 miles) north of Baghdad, the U.S military said.

MOSUL - At least five people were wounded, including three policemen, when a roadside bomb detonated near their patrol in eastern Mosul, said Brigadier-General Khalid Abdul-Sattar, Iraqi security spokesman in Nineveh province.

MOSUL - Gunmen shot dead a policeman near his house in western Mosul, police said.

SAMARRA - U.S soldiers found four bodies on Sunday in a grave south of Samarra, 100 km (60 miles) north of Baghdad, the U.S military said.