Three people were killed and about a dozen were injured today in three separate explosions in Baghdad.

Iraqi delegates delivered a peace proposal to aides of Muqtada al-Sadr in Najaf, but the militant cleric refused to meet with them as explosions, gunfire and a US air strike on the sprawling cemetery echoed across the holy city.

A mortar round killed at least six people and injured 35 others when it landed in a busy Baghdad street today.