Two bombings in an Iraqi market and a third in a cemetery as people buried victims of the first blasts killed 11 people, police and a doctor have said.
The first two attacks on Friday, targeting a livestock market in Tuz Khurmatu, 175 kilometres north of Baghdad, killed eight people and wounded 25.
As people gathered at a cemetery to bury the victims of the market blasts, another bomb went off, killing three people and wounding two.
Attacks in Iraq often target places where crowds of people gather, including markets, cafes and mosques, in an effort to cause maximum casualties.
A number of funerals have also been attacked this year.
Friday's attacks came a day after three suicide bombers targeted Shia pilgrims in Baghdad and south of the capital, killing at least 36 people, as fighters shot dead a family of five west of the city.
Violence has been on the rise in Iraq since a deadly security crackdown on a Sunni protest camp in a northern town in April.
Two years after US troops withdrew from Iraq, violence is at its highest level since 2006-7, when strife between Sunnis and Shia Muslims killed tens of thousands of people.
At least 352 people have died in attacks across the country so far this month, according to an Associated Press news agency count.