A string of bombings killed at least 15 people yesterday in the Baghdad area, while two suicide car bombers exploded in Ramadi, killing at least 11 people and wounding four, police and witnesses said.
US forces also reportedly came under attack. They clashed with insurgents north of Baghdad after a suicide bomber apparently tried to break through barriers around a joint US-Iraqi base, area residents said. US military officials said they looking into the incident.
In Baghdad, five people were killed when a suicide attacker donated a bomb-rigged belt on a public bus headed for the mostly Shiite area of Karradah in central Baghdad, police reported.
A roadside bomb killed three policemen in the Shiite area of Zafraniyah in southeastern Baghdad, wounding two other people, including a civilian, police said. Only 100m away, a bomb hidden in an open-air market exploded, killing at least five.
In Mahmoudiya, 30km south of the capital, a car bomb went off among auto repair shops, killing two and wounding two, police said.
Mahmoudiya is mostly Shiite with Sunnis living in villages around the community and has long been a flashpoint for sectarian violence.
In attack in Duluiyah, a Sunni area about 75km north of Baghdad, at least four were killed when a bomb-rigged car exploded.
In Ramadi, the attackers blew themselves up outside the house of a tribal leader who has help lead a government-backed campaign to fight al-Qaeda militants in Anbar Province, police said.
Five police officers and six civilians were killed in the blasts, witnesses said.
The first explosion hit the blast walls outside the house of Abdul Setar Abu Risha, where a police patrol was stationed.
The second suicide bomber rammed his vehicle into the house before blowing himself up.
Elsewhere, the US military announced yesterday that a US Marine was killed on Saturday during combat operations in Anbar Province.
Meanwhile, borders with Iran and Syria -- shut for three days as -- reopened on Sunday. But new and strict rules will apply.
Iraqi Brigadier General Qassim Moussawi was quoted in the Azzaman newspaper as saying the crossing points to the two nations would be open for only several hours a day and under "intense observation."



