The Philippines on Thursday confirmed six Filipinos were among the nine crew members killed when a cargo aircraft crashed late on Tuesday near Kabul, capital of Afghanistan.

The office of Department of Foreign Affairs received the report from the employer of the deceased overseas Filipino workers, some of whom were working as crew members of the cargo plane.

"It is with sadness that we received a confirmation from the Philippine Embassy in Islamabad that indeed six Filipinos perished from a plane crash recently in Afghanistan," Ed Malaya, spokesman of Department of Foreign Affairs, told a television network.

"What we have received is that they are passengers although we also read that they are crew members of the plane," he added, citing they cannot release their names yet because their families are still being informed about the incident.

The cargo plane was flying from Bagram Airfield, the major NATO military base in Afghanistan, to Kabul city.

It carried supply for the NATO-led International Security Assistance Force (ISAF). but the ISAF denied that the aircraft belong to the military.

Early reports indicated that the plane is an L-100 Hercules cargo aircraft, the civilian equivalent of a military C- 130.

The cause of the crash has so far not clear.