An Afghan district governor said 22 people, most of them women and children, were killed yesterday when US-led coalition airstrikes hit a wedding party in eastern Afghanistan, but the force insisted only militants were killed.

"I confirm that 22 people, three of them men and 19 of them women and children, were killed," said Hamisha Gul, governor of Deh Bala district in the eastern province ofNangarhar.

Gul said his information came from police and other officials he had dispatched to the area near the Pakistan border to investigate after reports of civilian casualties in the incident.

His claim could not be immediately confirmed with more senior Afghan officials nor independently verified as the area is remote and difficult to access.

The US-led coalition rejected the allegations.

"It was not a wedding party, there were no women or children present. We have no reports of civilian casualties," coalition media officer Captain Christian Patterson told AFP.

The coalition said in a statement earlier that "several" militants were killed in the air strike.

It was the second time in three days the coalition was accused of inflicting heavy civilian casualties in airstrikes.

Afghan officials have said strikes on Friday in northeast Nuristan province, also on the border with Pakistan, killed more than a dozen civilians.

The coalition insists only militants were killed. President Hamid Karzai has ordered an investigation.

The seven-year internationally supported campaign to fight a bloody Taliban-led insurgency has seen several incidents in which civilians were killed, as well as claims of civilian casualties that have proven untrue.

Hundreds of civilians have been killed in international military action against insurgents, most of them in air strikes on remote areas even though the forces employ several measures to confirm the identities of their targets.

The United Nations said last montli that nearly 700 Afghan civilians had lost their lives in insurgency-linked violence this year, nearly two-thirds in militant attacks and about 255 in military operations.

Meanwhile, a suicide bomber exploded a car bomb near a EU police training mission jeep in northern Afghanistan Sunday, injuring seven people including three Germans, officials said.

The attack was outside the town of Kunduz in die north of the country, an area which has seen an increase in militant strikes but far less of the insurgency-linked violence in southern and eastern Afghanistan.

Four people inside the vehicle were lightly wounded, European Union Police Mission (EUPOL) spokesman Andrea Angeli told AFP, describihg them as three German police officers and their Afghan interpreter.

Provincial governor Mohammad Omar said three children were also hurt.