The Islamic State militant group claimed responsibility on Sunday for a suicide blast at a wedding reception in Afghanistan that killed 63 people, underlining the dangers the country faces even if the Taliban agrees to a pact with the United States.
The Saturday night attack came as the Taliban and the United States try to negotiate an agreement on the withdrawal of U.S. forces in exchange for a Taliban commitment on security and peace talks with Afghanistan's U.S.-backed government.
Islamic State fighters, who first appeared in Afghanistan in 2014 and have since made inroads in the east and north, are not involved in the talks. They are battling government and U.S.-led international forces and the Taliban.
