(Adda background) FALLUJA, Iraq, Aug 27 (Reuters) - A suicide bomber killed 10 people and wounded 11 when he blew himself up after evening prayers in a mosque in Falluja, west of Baghdad, on Monday, police and hospital sources said. Police said the bomber had entered the office of the mosque imam where the imam, Abdul Sattar al-Jumaili, his son and a group of worshippers had been meeting. The United States is pushing for a political accord between Iraqi leaders to reduce sectarian violence that has killed tens of thousands of Iraqis.