Murderer Levi Bellfield’s ex-partner has revealed fears there could be “thousands” more victims all over the world.

Johanna Collings, who used to live in Penn, has told The Sun she is still “haunted” by her relationship with triple killer Bellfield, with whom she has two children.

In an exclusive interview with the national paper, Ms Collings, 49, said she fears there could be thousands more victims of Bellfield across the world, remembering a holiday to Turkey.

She told The Sun: “We were meant to go for two weeks but five days in he locked me in the hotel room and went out.

“He came back panicked and we flew home the next day. I always wonder what he did. Who did he hurt? He obviously did something.”

Bellfield was convicted of the murder of 13-year-old Milly Dowler in 2011 - while he was already serving life in jail for murdering 19-year-old Marsha McDonnell and Amelie Delagrange, 22, as well as the attempted murder of Kate Sheedy, who was 18 at the time of the attack.

Ms Collings and Bellfield split in 1998 after three years together, but she claimed that he terrorised and stalked her for almost a decade afterwards.

She says throughout their relationship, she was regularly raped, beaten and psychologically abused by Bellfield.

According to national reports, police have written to the jailed 52-year-old to let him know they want to question him over a number of unsolved crimes.

Ms Collings told The Sun she will always live with the guilt of being unable to stop him from carrying out the hideous crimes, but said: “I hope if he is charged it will bring justice to more people. They can’t give him any more time than he already has, but his victims deserve that at least.”

She added: “It makes me feel sick. He’s destroyed so many people’s lives. I will always think, ‘could I have stopped him?’ but there was never enough people to come forward.”

Bellfield was given a whole life term for murdering Ms McDonnell, 19, in 2003, and murdering Ms Delagrange, 22, and attempting to murder Kate Sheedy, 18, in 2004.

He was already serving this sentence when he went on trial accused of killing Milly, who was snatched from the street while on her way from school to her home in Walton-on-Thames, Surrey, in March 2002.

Bellfield was found guilty of abducting and killing the 13-year-old following a trial at the Old Bailey in 2011.