At least 13 people have been killed in a suicide car bomb attack northeast of Baghdad. 23 others were injured.
The attack happened as worshippers were leaving a mosque in the town of Balad Ruz after a religious ceremony linked to the holy period of Ashura.
Earlier, gunmen opened fire on customers in a bakery in eastern Baghdad, killing at least nine people.
The gunmen drove up in two cars and then burst into the bakery. The motive for the attack was not known.
Seven of the victims died in the bakery and two others died in hospital.
Rumsfeld in Iraq
Earlier, the US Defence Secretary, Donald Rumsfeld, arrived in northern Iraq on a previously unannounced visit.
A Pentagon spokesman said Mr Rumsfeld was in the Mosul area to make a personal appraisal of the training of Iraqi security forces.
It was the Pentagon chief's eighth visit to Iraq and came just seven weeks after his Christmas Eve visit with US troops.
Pentagon spokesman Lawrence Di Rita told reporters travelling with Mr Rumsfeld that the secretary wanted to recognise the success of the recent general election.
The visit came a day after he prodded NATO allies at a meeting in France to speed up the alliance's mission to train and equip Iraqi security forces.