The camp where suspected armed killer Raoul Moat has been living rough while on the run has been found by police.
A letter addressed to his ex-girlfriend Samantha Stobbart, who he is alleged to have shot, was discovered with a tent near Rothbury, north-east England.
Police have offered a £10,000 reward for information that leads to his capture as armed officers from across the UK continue their search.
Moat is alleged to have shot three people, killing one of them.
About 40 firearms officers from the Metropolitan Police have been sent to the area while the Police Service of Northern Ireland has sent 20 armoured cars.
Det Ch Supt Neil Adamson said he had a "gut feeling" Moat was still in Rothbury but admitted he may have "fled the area".
He said Moat had been living rough in a tent in a secluded spot near the Northumberland town.
Officers recovered the tent, the eight-page handwritten letter addressed to Miss Stobbart and other items.
The 22-year-old has not been shown the letter.
Miss Stobbart's father, Paul, appealed to the former nightclub bouncer to hand himself in to police.
He said: "What sort of legacy is this for your daughter?
"You know I won't lie if she asks about her dad, how good a dad you have been and how bad it has turned out."
Mr Adamson said he believed Moat could be armed with one or two weapons.
He added: "I think he has access to ammunition. He is probably on his own.
"If he is living rough we don't know what equipment he has access to."
Moat is alleged to have injured Miss Stobbart and killed her new partner Chris Brown, 29, in Birtley, Gateshead on Saturday.
Pc David Rathband, 42, was shot in his patrol car in Newcastle on Sunday.
Mr Adamson said the content of the letter was "very much personal" between Moat and Miss Stobbart.
He said: "In it Mr Moat reasserts his belief that Samantha's partner was a police officer. I repeat this is not the case."
Police remain convinced the main threat is directed at the police rather than the public.
The letter is the second written by Moat since he went on the run at the weekend.
The first was a 49-page handwritten note in which he declared war on police.
Mr Adamson confirmed the two men arrested in Tuesday's police operation remained in custody.
He said: "We are currently questioning a number of people who may have some connection with the events over the past few days."
Mr Adamson said there could be people helping Moat, adding that police had received hundreds of reported sightings of the fugitive.
Detectives have liaised with a number of experts including a forensic psychologist and Mr Adamson said: "We believe Mr Moat to be a measured individual who appears to carefully plan his actions and is comfortable in an outdoor environment."
Police said the operation remained focused in and around the Rothbury area and public safety was paramount.
"The reality is if you want to get into or out of Rothbury you have to pass marked and armed police officers," Mr Adamson said.
Officers now believe Moat carried out an armed robbery at a fish and chip shop in Seaton Delaval near Blyth on Monday night.
The robber escaped on foot after forcing staff to hand over cash.