Afghanistan on Monday announced a ban on news coverage showing Taliban attacks, saying such images embolden the Islamist militants, who have launched strikes around the country as NATO forces seize their southern strongholds.

The announcement came on a day when the NATO-led International Security Assistance Force (ISAF) fighting the Taliban reported six of its service members had been killed in various attacks.

Journalists will be allowed to film only the aftermath of attacks, when given permission by the National Directorate of Security (NDS) spy agency, the agency said. Journalists who film while attacks are under way will be held and their gear seized.

"Live coverage does not benefit the government, but benefits the enemies of Afghanistan," NDS spokesman Saeed Ansari said. The agency summoned a group of reporters to announce the ban.