A private television station in the Afghan capital has come under attack by at least two men who broke into the building after an explosion, a security official says.
One of the attackers was killed by guards while another fought off security forces with hand grenades.
As the attack unfolded, Shamshad TV, a Pashto language broadcaster, stopped normal programming, transmitting only a still image.
There was no immediate indication of casualties or the identity of the attackers but Taliban insurgents issued an immediate denial that they were involved.
The attack is the latest in a series of assaults on Afghan journalists and media workers. Last year seven members of Afghanistan's largest private television station, Tolo, were killed by a Taliban suicide bomber.