Factions of the Pakistani and Iranian intelligence agencies have been supporting the Taliban and other terrorist groups carry out attacks on the US-led international forces in Afghanistan, a top US commander in the restive country has said.

General Steanly McChrystal, commander of the US and NATO forces in Afghanistan, informed the White House that factions of the Pakistani and Iranian spy agencies are supporting the Taliban and other terrorist groups that carry out attacks on the US-led Nato forces in the country, a leading American daily reported on Tuesday.