Tuesday, March 2, 1999 Published at 23:49 GMT
Britons died in cold blood - survivor
The national park is home to around 300 gorillas
The four Britons killed in Uganda were brutally murdered in cold blood by rebels and were not killed during a rescue attempt, according to a tour leader.
The BBC's East Africa correspondent Martin Dawes says after he was released, Mr Ross walked back along a trail and came across three bodies. One was a woman who had apparently been raped.
His account is at odds with that of the Ugandan police, who said the hostages had been killed in the cross-fire of a rescue attempt.
"We're simply doing everything we can to find out the situation," he said during a visit to Italy.
"Our first concern and our first information has got to be given to the families of the people."
Mr Ross said he saw five bodies on Monday even though Ugandan police spokesman Eric Naigambi said the tourists were killed on Tuesday morning.
If this was confirmed, he would want an immediate explanation of how it happened in the light of assurances given on Monday.
The parents of one have been talking about the loss of their 23-year-old son, Mark Lindgren.
His father, John Lindgren, said: "Mark was kind-hearted, generous, bright and loved life. He had a wonderful sense of humour and was loyal to his friends and family.
"He was respected by the people he worked with and he had a bright future ahead of him."
Neighbour Peter Kellner added: "The Lindgrens are an exceptionally close-knit family.
"They are well-liked by their neighbours and many friends. We are all devastated by this news."
Linda Adams, 54, from California, escaped by faking an asthma attack.
"The group holding the British people treated them quite badly," she said.
"A British guy was sitting next to me. I could see he had purple toenails from being beaten.
"The British people were being forced to walk barefoot if they had no shoes."
The dead had machete wounds and their bodies are now in Kampala, in the care of the British High Commissioner, Michael Cook.
He believed Britons and Americans had been singled out by Interhamwe rebels in revenge for the two countries' alleged support for Ugandan and Rwandan intervention in the Congo.
The Hutu rebels massacred more than 500,000 Tutsis in 1994 and last year took hostage 11 people, including four foreign tourists. Three of thosee travellers have not been heard from since.