U.S.- and NATO-led troops in Afghanistan denied today any involvement in a weekend raid that Afghans alleged was conducted by foreign forces and which resulted in the death of four civilians in Kabul.

Hundreds of people took to the streets to protest the killing of two boys, a man and a woman in an early morning incident in a village on the eastern outskirts of the capital for which they blamed international soldiers.

NATO's International Security Assistance Force (ISAF) which leads most of the 70,000 foreign troops here, citing an "extensive investigation," said no NATO- or US-led forces were involved in the raid.

"After an extensive investigation, ISAF reports that neither it nor the U.S.-led coalitions forces were conducting any offensive operations in Kabul on the evening of August 31," the force said in a statement.

"After thoroughly checking with all ISAF and U.S.-led coalition forces, none were involved in such an operation," the statement added.

Lieutenant Nathan Perry, a spokesman for the separate U.S.-led force also denied involvement in the raid which took place in Hood Khail village.

"I can confirm that we had no participation in any way in that incident," he told AFP.

"No US involvement at all," the spokesman said, after being asked if any other forces might have been involved, such as U.S. Special Forces which are said to operate independently of other troops.

The incident comes a week after a U.S.-led coalition air strike killed 90 civilians in western Afghanistan's Herat province, according to United Nations and local investigators.

The deaths were heavily criticized by President Hamid Karzai. The U.S.-backed leader asked for a review of rules regulating the international military deployment in the country after that incident.