A suicide car bomber has killed at least 37 people and wounded more than 30 in southern Afghanistan, the second such deadly attack in 24 hours.
Interior Ministry officials say Monday's attack targeted a Canadian military convoy in the town of Spin Boldak in the southern province of Kandahar. Officials say those killed in the blast were civilians. At least three Canadian soldiers wounded.
The Taliban has claimed responsibility for today's bombing.
The blast came one day after Afghanistan's deadliest suicide attack since the Taliban was ousted in 2001. At least 100 people were killed Sunday when a bomber blew himself up in a crowd of people watching a dogfighting competition outside Kandahar City.
Kandahar provincial governor Assadullah Khalid blamed the Taliban for Sunday's attack, but the Taliban movement has rejected that claim.
Afghan officials say the apparent target of Sunday's attack was the head of an anti-Taliban militia, Abdul Hakim Jan, who was killed along with at least 32 of his men.
Witnesses say some members of the security force fired at the crowd after the explosion, causing additional casualties.
Kandahar is a stronghold of the Taliban and a major producer of poppies - the source of heroin and opium. During the past two years, the province has seen fierce fighting between insurgents and U.S., NATO and Afghan forces.
Some information for this report was provided by AFP, AP and Reuters.