WASHINGTON:Aninternational media advocacy group urged Pakistani authorities on Tuesday to bring to justice all those responsible for the murder of cameraman Taimur Abbas who worked with a private television channel.

Mr Abbas worked with Samaa TV and was fatally shot on Sunday night while covering the af termath of an attack on a police vehicle.

`His [Taimur Abbas] murder while reporting underscores the grave risks Pakistani journalists face reporting on the effects of political violence, particularly f rom secondary attacks, said Joel Simon, the Executive Director of the US-based Committee to Protect Journalists (CPJ).

Mr Simon advised Pakistani journalists to `exercise utmost caution when approaching the site of an attack`. The deceased and his colleagues arrived to cover the aftermath of a grenade attack on a police vehicle in the North Nazimabad area there were no casualties in the attack itself, but the assailant shot at the news van later.