More than 60 people have been killed and another 150 have been injured after several bombs went off in Baghdad.
The bombs exploded near markets in the Iraqi capital. They went off at around the same time in areas which were busy with shoppers and traders.
One of the markets - called Shorja - has been targeted by bombers before.
Another bomb exploded at the Bab al-Sharji market. Witnesses reported seeing huge clouds of black smoke across the city.
Reports say that there were two car bombs at Shorja market, which went off at almost the same time, destroying a building and setting shops on fire.
The Bab al-Sharji bomb went off half an hour earlier - at around 11.50am local time on Monday. The explosives were thought to be packed into a parcel.
Sacred
The attacks happened as Shia muslims were holding ceremonies to remember the anniversary of a bomb attack on one of their sacred sites in a place called Samarra.
The attack triggered fighting between people of different beliefs in the country.
Shorja market is an area popular with Shia muslims. It has been targeted by groups with different beliefs in the past.