The aftermath of a car bomb just north of Baghdad.

13 people were killed and more than 50 wounded in three bombing attacks in and around the city on Thursday.

Some fear the wave of attacks means a return to widespread sectarian violence in Iraq.

Here, four people were killed and 20 wounded in a bombing in the early hours of the morning.

In the deadliest of Thursday's attacks, at least eight people were killed and 30 wounded when a bomb exploded at the entrance of a Baghdad market in a mainly Shi'ite Muslim district.

In southern Baghdad, a roadside bomb targeting a police patrol killed one and wounded five.

More than 150 people have been killed in June across the country in attacks targeting mainly Shi'ite pilgrims and shrines.

Sarah Sheffer, Reuters