A massive suicide car bomb ripped through a NATO convoy in Kabul Tuesday, killing six service members, including five American troops. At least 12 Afghan civilians were also killed in the blast.

"There were casualties among the NATO forces as well as among civilians - women, children and schoolchildren," Afghan President Hamid Karzai told a news conference.

The 1,600 pound bomb went off near the Afghan parliament during rush hour traffic. Forty-seven people, mostly Afghan civilians, were wounded.

The attack was the first major bombing in Kabul since February when suicide bombers struck two small hotels in the city center.

The Taliban has claimed responsibility for the attack. Taliban spokesman Zabiullah Mujahid told The Associated Press that the bomber was a man from Kabul and the target of the attack was the foreign convoy.