Gazans perform funeral prayers for UNRWA employee Mohammad Abu Atwi, who was killed in an Israeli air strike on his UN vehicle in Deir el-Balah, in central Gaza. "Mohammad was not fighting on the frontlines, he had nothing to do with it," says his father Marwan. At least 223 UNRWA staff have been killed and two-thirds of the agency's facilities in Gaza damaged or destroyed since the war erupted early last year, its head, Philippe Lazzarini, said last month. IMAGES AND SOUNDBITES