The death toll from a suicide attack at a military base in eastern Afghanistan rose to 33 on Monday, as casualties from the Taliban's insurgency continue to mount despite nascent peace talks.

The Sunday evening bombing came at a military roadblock near Camp Chapman in Khost province, where both Afghan and foreign troops are stationed, shortly before iftar, the meal breaking the Ramadan fast.

A suicide bomber tore through an Afghan-NATO foot patrol in a crowded city on Monday, killing at least 14 people, including three foreign troops and their interpreter, officials said.

Taliban insurgents claimed responsibility for the attack near a market in the eastern city of Khost. Four Afghan police and six civilians were also killed, and 57 were wounded, local officials said.

Eight people including a policeman were killed and 30 others wounded Friday in a suicide car bomb attack on a police post in Khost, eastern Afghanistan, police said.

The incident, which was blamed on the Taliban, is the latest to target Afghan police who, with the country's army, are due to take control of security from international troops by 2014.