Troubled TV presenter Mark Speight has today been found dead, it has been revealed.

The 42-year-old BBC children's TV presenter was discovered at a remote part of of Paddington Railway Station, British Transport Police said.

The circumstances surrounding his death are subject to an ongoing investigation by British Transport Police, but police can confirm the deceased was not struck by a train.

Officers investigating the death are to examine CCTV footage from the station, and said they are currently treating the death as unexplained.

Miss Collins was found dead on January 3 from boiling water burns and a drugs overdose in the bath of the north-west London flat she shared with Speight.

The presenter told police the couple had been "partying" and had taken cocaine and sleeping pills as well as drinking wine and vodka.

He was initially arrested on suspicion of murder and supplying Class A drugs, but last month Scotland Yard said he would not face any charges over the death.

Mrs Speight looked drawn and gaunt when he attended her inquest just six days before he went missing.

He had been planning a tribute concert in memory of Miss Collins, his best friend said.

The presenter was captured on camera entering Queen's Park tube station in north-west London at 2.25pm on Monday afternoon.

He was last seen 22 minutes later boarding a southbound Bakerloo Line train heading towards the centre of the capital.

Mr Speight was reported missing after failing to keep an appointment to meet his dead fiancee's mother for coffee in Covent Garden at 3.30pm the same day.

Before going missing Mr Speight, famed for presenting BBC children's TV art show Smart, had been living at Natasha's mother Carmen's house in North London.

Jan Kennedy, of Billy Marsh Associates, Mr Speight's agent, said news of his death had come as a shocking and distressing blow.

"We are absolutely devastated at the tragic news of the loss of Mark and our thoughts and prayers go out to his family as well as the family of his beloved fiancee, Natasha, whose equally tragic death had effected him so inconsolably," she said.

''Caring and compassionate in everything he did, Mark was truly gifted in life and we are proud to have represented him as a friend and client for almost twenty years.

''He was blessed with a remarkable personality, great artistic talents and the wonderful warm ability to communicate those skills with people, especially children of all ages.

"With his sensitivity of spirit, coupled with his dynamic presence and natural enthusiasm he was loved and respected by his adoring family, friends and colleagues everywhere in the media."

A spokeswoman for Carmen Collins, Natasha's said she was devastated that Mr Speight's body had been found, and asked for time to grieve in peace.