Officials say five people have been killed and 15 have been wounded in bomb attacks across Baghdad.

A police officer says a roadside bomb hit a police patrol early Wednesday morning in western Baghdad, killing two policemen and wounding two others. He says another bomb went off in a grocery market in southern Baghdad, killing two civilians and wounding seven.

Another police officer says a third bomb exploded in a market in the city's east. That explosion killed one and wounded six people.

Health officials confirmed the casualty figures. All officials spoke on condition of anonymity because they are not authorized to speak to the media.

Markets and security forces are among favorite targets of the insurgents seeking to undermine public confidence in government efforts to restore security.