At least seven people were killed in a roadside bomb attack in Baghdad on Wednesday morning.
The blast hit a busy street in the suburb of Nahrawan, also injuring 15 others.
The bodies of three construction workers were also found inside a house under construction in the nearby southeastern district of Zafaraniya. A police officer said all three were shot in the head at close range.
Wednesday's deaths bring the number of people killed in Iraq since Monday to 116, after a wave of bombings and attacks hit the country and sectarian violence surged.
On Tuesday, at least six car bombs went off in markets and commercial areas of Baghdad. At least 49 people were killed nationwide.
More from GlobalPost: Baghdad car bombing leaves at least 5 dead as Iraq sees more violence
No groups have claimed responsibility for the recent violence in Iraq, but most of the attacks have occurred in areas that are predominantly occupied by Shiite Muslims.
The United Nations has said that more than 2,500 people were killed in the country in April, May and June. The death toll is believed to be more than twice that caused by the violence in the first three months of the year.