BAGHDAD (AP) — A car bomb at a popular auto dealership Saturday killed 13 people and injured 52 in eastern Baghdad's volatile Sadr City neighborhood, where a market bombing two days earlier killed dozens, police said.

The Habibiya car dealership, widely-known for buying and selling used vehicles, has been targeted multiple times in the past.

A massive explosion in a Sadr City market on Thursday killed at least 67 people and wounded more than 100. It was one of the worst single-day attacks in Baghdad in a decade.

No one claimed responsibility for Saturday's attack but the Islamic State group said it was behind Thursday's attack.

Elsewhere in and around the capital, a series of bombings killed at least nine people and wounded 33.

The largest took place in the town of Madain, just south of Baghdad, when a bomb tore through a popular market killing three people and wounding 10, police said.

In the town of Taji, north of Baghdad, a bomb hit a row of auto repair shops, killing two people and injuring eight.

In Baghdad's al-Askan district, an improvised explosive device detonated on a busy commercial street, killing at least two people and wounding eight. And in Baghdad's southeastern suburb of Jisr Diyala, police said two were killed and seven wounded when a bomb exploded on a commercial street.

Hospital officials corroborated the casualties. Officials spoke on condition of anonymity because they were not authorized to talk to reporters.

Associated Press writer Vivian Salama in Baghdad contributed to this report.