Police investigating the disappearance of teenager Alice Gross are searching for a man who has been missing for nearly two weeks.
Detectives are appealing for the public’s help to find Latvian builder Arnis Zalkalns, who was last seen at his home in Ealing on September 3.
The 41-year-old lives with his partner and child and is known to travel to work along a similar route to the one Alice took on the day she disappeared.
Mr Zalkalns was reported missing on September 5 after he failed to turn up to meet a friend so they could cycle to work together.
Police described Mr Zalkalns as white, 5ft 10ins tall, with a stocky build and dark brown hair which he usually wears in a ponytail.
Detective Superintendent Carl Mehta, from the Homicide and Major Crime Command, said: “It is completely out of character for Arnis to go missing.
“His family is very worried about him. I am asking for anyone who has seen him, or knows where he is to get in touch.”
“I would stress that based on what we know now there is no evidence to suggest that Arnis and Alice knew each other.
“At this stage, we simply want to speak to him, as he may well have important information that can help our search for Alice.”
It comes after police released a 25-year-old man who was being held on suspicion of murder, but has been told he faces no further action.
A 51-year-old man who was held on September 7 by officers working to establish what happened to the 14-year-old was released the following day.
Despite repeated public appeals, investigators have had no confirmed sightings of Alice since 4.26pm on August 28, when she was last seen on CCTV by the Grand Union Canal in west London.
Scotland Yard’s Detective Chief Inspector Andy Chalmers said Alice’s family had been left “devastated” by her disappearance.
Her parents, Jose Gross and Rosalind Hodgkiss, and sister Nina have previously recorded appeals urging her to come home.
Det Insp Chalmers said police have no evidence that the anorexic teen was being bullied but hope finding her white iPhone 4S with a distinctive cracked case might help officers with a breakdown of her recent communications.
The smartphone last connected to the network just after 5pm on the day she disappeared.
He said Alice had been going through a “difficult time” but there had been no family argument before she vanished.
Det Insp Chalmers will make a public appeal on the BBC’s Crimewatch programme on Tuesday night, using CCTV images to show Alice’s last known movements between 1pm when she left her Hanwell home and 4.26pm when she walked along Trumpers Way towards Hanwell.
Alice is white, 5ft 2ins tall, of very slim build and has shoulder-length, light brown hair.
She was last seen wearing dark blue jeans and a dark green lacy cardigan and carrying a dark rucksack.