BAGHDAD: A car bomb at a repair shop and other attacks in and around Baghdad killed at least 25 people on Sunday, Iraqi officials said.

Nobody claimed responsibility for the attacks, but insurgent groups frequently target civilians in markets, cafes and commercial streets in Shia areas, as well as the security forces, in an attempt to undermine confidence in the government.

Police officials say the car bomb exploded inside a vehicle maintenance compound in Baghdad's western neighborhood of Baiyaa, killing seven people and wounding 14 others. Police said four people were killed and 11 others were wounded when another car bomb exploded in a commercial street in downtown Baghdad. In eastern Baghdad, six people were killed and 22 were wounded when a car bomb exploded near a government taxes office in Ghadeer neighborhood.

A bomb went off at the crowded market in the primarily Shia neighborhood of Amil in southwestern Baghdad, killing five people and wounding 12 others.

Also, two people were killed and eight others were wounded when another bomb struck a row of shops in Baghdad's southwestern suburb of Radhwaniya.

An off-duty army officer was killed when a sticky bomb attached to his car exploded as he was driving near his house in Madain town, just south of Baghdad, police said.

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

Iraq has seen a surge in militant attacks and violence since a deadly April crackdown by security forces on a Sunni protest camp in a northern town. At least 115 people have died in attacks in Iraq so far this month, according to an Associated Press count.