year-old boy, severely injured by shrapnel in the abdomen when his home was bombarded by U.S. jets overnight. His parents were unable to get him to hospital and he died hours later of blood loss, they said. As battles raged in Falluja, insurgents hit back elsewhere with attacks on police stations in Baquba and Baghdad, fighting in Ramadi and a mortar attack in the northern city of Mosul. But in Baquba, the official in charge of the main morgue denied earlier reports that 45 were killed in the attacks claimed by al Qaeda ally Abu Musab al-Zarqawi. He said he had not dealt with any dead from the attacks. Interim Prime Minister Iyad Allawi, making fresh use of emergency powers he activated on Sunday, imposed a night curfew on Baghdad for an indefinite period. The curfew will hold from 10:30 p.m. (1930 GMT) to 4 a.m. (0100 GMT) from Tuesday night. The military has given no figures for U.S. casualties since the assault on Falluja began on Monday evening. There has also been no word on the number of civilian casualties. Residents said a U.S. air strike hit a clinic in a central district, killing medical staff and patients. --More 2116 Local Time 1816 GMT