Doctors Without Borders says it has not officially received any details of the compensation announced yesterday by the US for those killed and wounded in the US air strike on a hospital in Afghanistan.

The group, known by its French acronym MSF, has demanded an independent international investigation into the incident in Kunduz.

It said 33 people are still missing after the attack on 3 October, in addition to 12 MSF staff and ten patients already confirmed dead.

"The Department of Defense believes it is important to address the consequences of the tragic incident," Pentagon spokesman Peter Cook said in a statement yesterday.

It added that US Forces-Afghanistan (USFOR-A) also has the authority to pay for repairs to the hospital.

"One step the department can take is to make condolence payments to civilian non-combatants injured and the families of civilian non-combatants killed as a result of US military operations."

Mr Cook said USFOR-A would determine "appropriate payments" through discussions with those affected.

However, MSF said its longstanding policy is "to not accept funding from any governments for its work in Afghanistan and other conflicts around the world", in regard to the offer to make funds available to repair the hospital.

The charity added: "This policy allows us to work independently without taking sides and provide medical care to anyone who needs it. This will not change."

The attack caused MSF to close the trauma centre, seen as a lifeline in a war-battered region with scant medical care.

The strike came just days after the Taliban overran the city, with many residents wounded after pitched street battles.

US President Barack Obama has apologised to MSF, admitting the strike was a mistake.

Three separate investigations - by the US military, NATO and Afghan officials - are under way.

However the charity has condemned the attack as a war crime.

It has stressed the need for an international investigation, saying the bombing raid contravened the Geneva Conventions.