Baghdad - At least four people were injured Wednesday in a bomb blast on a bus in north Baghdad while the US military said it captured a suspected Iranian-trained explosives expert in Kut in southern Iraq.
A bomb went off on a bus in the Shiite-dominated Kazimiyah in north Baghdad, injuring four passengers, police sources told the Voices of Iraq news agency.
US troops arrested on Wednesday a suspected special group explosives expert in Numaniyah, 180 kilometres south-east of Baghdad near the city of Kut, according to a US military statement.
The military uses the term "special groups" to describe Shiite fighters breaching a truce order issued by radical cleric Moqtada al-Sadr, whose militia fought Iraqi and US troops for months until the truce was reached in May.