An RUC informer who revealed that police had received two warnings prior to the 1998 Omagh bombing has been told his police protection will end in September.
The police agent, who uses the pseudonym 'Kevin Fulton', first came to prominence in 2000 when it was revealed that he had tipped-off police three days before the Omagh attack that the Real IRA was preparing a major bomb destined for somewhere in Northern Ireland.
While Fulton did not give the precise target, he named the bomb-maker and his whereabouts.
In the aftermath of the Omagh inquiry, Fulton fled to England claiming that his cover had been blown and that his life was now in danger.
Since then he has lived in a safe house in England provided to him by police.
In April, security minister Jane Kennedy's office wrote to Fulton stating that while his life was under threat in Northern Ireland, he would no longer be provided with a new identity in England.
The letter stated that the Northern Ireland Office did not believe Fulton would be in danger living in England under his real name.
Speaking from his English safe house last night, Kevin Fulton said that the NIO had yesterday informed his solicitor that his police protection would be withdrawn on September 12.
"They have informed my solicitor that from September I am on my own and that I will have to leave the safe house and can no longer live under the pseudonym Kevin Fulton.
"I firmly believe that they are doing this because I have become an embarrassment to the security services because of what I have revealed about what they did in Northern Ireland.
"Now I believe they want me killed."
The decision not to provide Fulton with a new identity comes just six months after the NIO used his former police handler to offer Fulton a deal, if he called-off legal action in which he threatened to name other British army agents.
Fulton denies that he was behind last month's naming of a west Belfast man as the army's 'Stake-knife' agent within the Irish Republican Army.
In April, British/Irish Rights Watch spokeswoman Jane Winter expressed her concern at the threat to withdraw protection for the former agent.
"Kevin Fulton is one of a number of people, who were effectively spies who worked undercover for the state on the understanding that they would be treated fairly if their double life was ever exposed.
"He now finds himself in the situation where the government were protecting him yesterday.
"Today they are cutting him lose," Ms Winter said at the time.
A police spokeswoman last night said that the PSNI did not comment on individual cases.
