At least two rockets were fired at a building housing multinational peacekeeping troops in Kabul early this morning, a spokesman for the International Security Assistance Force (ISAF) said.
It was not clear who was responsible was for the attack, which caused no injuries or damage and came days after Afghan officials said a plot to destabilise the interim administration had been foiled.
Foreign troops were also the target of the foiled campaign of bombings aimed at killing interim leader Mr Hamid Karzai.
Afghan officials said today they would not rule out involvement of fundamentalist groups in the rocket attack, including remnants of the vanquished Taliban regime and followers of one-time prime minister Gulbuddin Hekmatyar.
The guards on duty at that time reported what they thought was a rocket-propelled grenade attack against the location which houses the Kabul headquarters of the multi-national brigade, Lieutenant-Colonel Neal Peckham told reporters.
"The impact was merely two hundred metres from the perimeter fence of the headquarters," he said.
The compound that was targeted is a major operational base for ISAF, which has its administrative headquarters in central Kabul.
Mr Feraydon (one name), a secretary for Interior Minister Mr Yunis Qanuni, said the rockets were fired from the Bagrami area southeast of the city.
"So far we have not arrested anybody in connection with the rocketings. Those who did it are probably either Taliban remnants or loyalists of Gulbuddin Hekmatyar," he said.
An Interior Ministry team was investigating, he added. Foreign ministry spokesman Mr Omar Samad said pockets of Taliban and Osama bin Laden's al Qaeda fighters were regrouping with the help of what he called local and foreign fundamentalists aimed at toppling the interim administration.