FACTBOX: Security developments in Iraq, Jan 2

(Reuters) - Following are security developments in Iraq at 9:30 a.m. EST on Friday.

YUSUFIYA - A suicide bomber killed at least 23 people and wounded 42 when he snuck into a lunch gathering of Sunni Arab tribal leaders in the town of Yusufiya, 20 km (12 miles) south of Baghdad, the city's security spokesman Major-General Qassim Moussawi said.

MOSUL - Gunmen killed a civilian in a drive-by shooting near his house in western Mosul, 390 km (240 miles) north of Baghdad, police said.

MOSUL - A roadside bomb wounded a policeman when it struck near his patrol in western Mosul, police said.

MUSSAYAB - Gunmen stormed a local Sunni Arab neighborhood patrol checkpoint, killing three of its guards and wounded six others in Mussayab, 60 km (40 miles) south of Baghdad, police said.