Listen to William Walker on the BBC's Breakfast With Frost

William Walker, head of the Organisation for Security and Co-operation in Europe (OSCE), was ordered to leave Yugoslavia after he blamed Serbian security forces for the killings at Racak two weeks ago.

The expulsion order was later suspended by the Yugoslav authorities.

He told the BBC's Breakfast With Frost programme: "All the evidence that you looked at on the ground showed those people had died where they fell."

He said the victims "were all obviously not soldiers - there was a woman and child among them.

"I talked to some of the villagers who had so recently experienced this horror and everything just came together. There has been no contradictory evidence since the event.

"A lot of people have been examining it - journalists, other people from my team, other people from outside - and to date there is absolutely nothing that contradicts what I said about it.

"I have absolutely no doubt that what I said is accurate. Absolutely accurate."

'Uncertainty' over new massacre

William Walker: Defied expulsion order

Mr Walker said he was not sure who was behind the latest mass killing of 24 people in the village of Rugovo.

Mr Walker accompanied the UK Foreign Secretary, Robin Cook, as he delivered the six-nation Contact Group demands to Serbian and Albanian leaders on Saturday.

He said he believed that Serbian President Slobodan Milosevic would agree to attend talks.

Mr Milosevic was "personable" and "a skilled manipulator of words and deeds", he said.