Floodwaters deluged a wedding party in Deh Mordan village when Sang Charak district was flooded on Sunday night, disaster officials say.
A provincial council member told the media that President Karzai had sent two helicopters to assist rescue efforts.
A number of women and children at the wedding party are among the dead.
”We have a human tragedy. Floods have hit a wedding party and several other villages,” provincial governor Haqbeen said.
“The area is mountanious. Several other nearby villages have also been hit. Sadly there are a lot of human losses. But people have also lost livestock, agricultural lands.”