BAGHDAD -- Three evening bombings and a shooting in and near Iraq's capital have killed 20 people at the end of a deadly day of attacks around the country.

The latest violence brought Sunday's death toll to 64, with more than 285 wounded.

Police said car bombs in three western Baghdad neighborhoods Sunday night left 15 dead and 47 wounded.

A few hours earlier, authorities said gunmen killed three security officers and wounded a fourth at a checkpoint in the town of Abu Ghraib, just west of Baghdad. Two gunmen also were killed in the firefight, and a third was captured.

The casualties in all four cases were confirmed by police and hospital officials who spoke on condition of anonymity because they were not allowed to release the information to reporters.