A gang of knife-wielding men have attacked an internet cafe in China's capital leaving more than 10 people injured, the Beijing Times reports.
The attackers asked for a security guard to identify himself, then started slashing indiscriminately when nobody came forward.
One customer, whose head was cut, said the floor was covered with blood.
The incident was the latest in a string of knife attacks reported by China's tightly controlled media.
It was not clear what sparked the latest violence, but the Beijing Times speculated it was a revenge attack, possibly related to one of the attackers' younger brothers.
The gang arrived at the cafe on Monday evening, when about 70-80 people were inside, the paper reported.
Some members of the gang blocked the exit while two men slashed people and computers.
"Everyone had their heads bowed and didn't dare move," one customer, Jia Xiaojian, was quoted as saying.
The attack came on the same day as a man in the eastern province of Shandong slashed 25 school children with a kitchen knife.
In August, a doorman at a Beijing nursery killed one child and injured 17 other children and teachers in another knife attack.