BAGHDAD, Iraq - Four children collecting trash were killed Friday by a homemade bomb in Baghdad, and masked gunmen killed an Iraqi Army officer in a restaurant in the southern city of Basra, police said.

The children died in the New Baghdad neighborhood in the southeast section of the city, police Capt. Sabah Hamid Al-Fartosi said. Insurgents frequently use hidden roadside bombs against U.S. and Iraqi Army convoys.