Car bombs rocked a number of predominantly Shiite Muslim neighborhoods of Baghdad on Monday, killing at least 13 people and wounding 53 others, police officials told CNN.
Six car bombs detonated Monday in five neighborhoods across Baghdad within a period of about two hours, police said.
The United Nations said 2013 was the deadliest year in Iraq since 2008, with almost 8,000 people killed in violence, most of them civilians.
On Saturday, U.S. Vice President Joe Biden talked with Iraqi Prime Minister Nuri al-Maliki about U.S. support for Iraq’s fight against the Islamic State in Iraq and Syria, a group trying to overthrow the Iraqi government.

