President Hamid Karzai has said that no civilian casualty is acceptable.

Demand for trial

Mr Karzai set up a nine-man commission to look into Sunday's incident.

The commission is headed by Senate deputy speaker, Burhanullah Shinwari whose constituency is in Nangarhar province. He told the BBC: ''Our investigation found out that 47 civilians (were killed) by the American bombing and nine others injured.

"There are 39 women and children" among those killed, he said. The eight other people who died were "between the ages of 14 and 18".

A spokeswoman for the US coalition, Lt Rumi Nielson-Green told the AFP news agency that the force was also investigating the incident and regretted any loss of civilian life. "We never target non-combatants. We do go to great length to avoid civilian casualties," she said.

At the time the US said that those killed were militants involved in previous mortar attacks on a Nato base.

The incident happened in the remote district of Deh Bala, close to the Afghan border.

Mirwais Yasini, deputy speaker for the lower house of parliament, also has his constituency in Nangarhar. ''We are very sad about the killings in Deh Bala. People should be compensated," he told the BBC.

"These operations widen the gap between the people and the government."

He said that those who passed on intelligence to the US military ahead of the air strike should be tried, "as well as those who carried out the bombing".

Mr Yasini demanded that "all operations should be conducted in full co-operation with our security forces in the future".

On Wednesday the Red Cross said that at least 250 Afghan civilians had been killed or wounded in insurgent attacks or military action in the previous six days. It called on all parties to the conflict to avoid civilian casualties.

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People injured in Sunday's strike were taken to hospital