( CNN ) -- A pair of suicide car bombs exploded near a security checkpoint in central Baghdad Monday morning , killing at least three people and wounding 20 others , Iraq 's interior ministry said . The casualties included Iraqi security forces and civilians , according to the ministry . The attack took place at the western entrance to the Green Zone -- a heavily fortified area which houses Iraqi government offices and many foreign embassies , including the U.S. and British embassies .
Suicide car bombs are part of an attack on a security checkpoint . Comment: