Iraqi officials say two bombings targeting Shiite neighborhoods have killed eight people in Baghdad.

Police officials say a bomb blast on Tuesday near a clinic killed five people and wounded 11 others in the capital's New Baghdad district.

Police said a second bomb attached to a minibus exploded in Baghdad's sprawling Sadr City neighborhood, killing three passengers and wounding seven others.

Hospital officials confirmed the casualty tolls. All officials spoke on condition of anonymity because they are not authorized to talk to media.

Nobody immediately claimed responsibility for the attacks, but Sunni Islamic extremists frequently target the country's Shiite majority, whom they consider heretics.