Ten members of an Afghan wedding party, including the bride and possibly the groom, died when the bus carrying them struck a roadside bomb on Saturday.
Maitullah Khan, a provincial police chief, said six others were wounded in Saturday's blast, which happened in the Spin Boldak district of Kandahar province.
The victims included children, he said. Khan blamed Taliban militants for placing the mine.
While he said the bride and groom had been killed, relatives told an Associated Press cameraman that the groom was actually still alive but unconscious.
In other developments, U.S.-led forces battled insurgents in several other provinces.
Coalition troops killed an unspecified number of militants in the western province of Farah on Friday, according to the U.S. military.
Three Taliban fighters were also killed in the eastern province of Paktia on Friday, and more than a dozen militants died in the southern province of Uruzgan after battling coalition and Afghan troops.
More than 2,700 people have died in insurgency-related violence in Afghanistan so far this year, according to an Associated Press tally.
Most of those who have died are militants.
Pakistan to help
Pakistan has offered to help investigate last month's deadly attack on the Indian embassy in Kabul, Indian's foreign ministry said Saturday.
The attack by a suicide bomber killed two Indian diplomats and 56 others.
Pakistan has denied claims in a U.S. newspaper report linking members of the country's intelligence service to the bombings. Analysts say the attack may jeopardize a four-year-old peace initiative between the South Asian rivals.
Pakistan's Prime Minister Yousaf Raza Gilani has told Indian leaders he will discuss the embassy attack with Afghanistan's President Hamid Karzai this weekend.
French aid workers released
A Paris-based aid group said Saturday two of its workers who were kidnapped at gunpoint last month have been freed. Officials with Action Against Hunger say the pair appear to be healthy.
The workers were taken by gunmen from their home in the province of Day Kundi on July 18. The aid group is making arrangements to bring the workers back to France.
With files from The Associated Press
