Adam Pickup: Police release footage of last sighting
Police searching for a 17-year-old boy who failed to return home after a night out with friends have released CCTV footage of his last sighting.
Adam Pickup, of Bramhall in Stockport, Greater Manchester, was last seen in Manchester city centre on Saturday.
Greater Manchester Police have been given until 03:00 GMT on Tuesday to question two men they are holding in connection with his disappearance.
Mr Pickup's father Chris said his son's disappearance was "out of character".
Police said the teenager left the Fab Cafe in Portland Street at about 03:20 GMT and was last seen on CCTV walking along Oxford Street 10 minutes later.
The newly-released footage shows Adam speaking to a man and woman as he walks along Oxford Road.
Supt John Berry said: "This couple may have vital information to help us find him."
The police search is centred on a 200m radius from Portland Street, taking in a canal, alleys and subways, added Ch Supt Neil Adderley at a later news conference.
Underwater search teams have searched the canal, which was partly drained, he said.
He also appealed to owners of premises that have been empty for the last few days to check them.
At 15:00 GMT, Ch Supt Adderley granted his officers an extra 12 hours to hold the arrested men. He said they would be using the time to put more questions to the men.
On Sunday, family and friends carried out a search near to the former BBC site in Oxford Road where Adam's mobile phone signal was last traced by police.
Mr Pickup said: "He goes out occasionally and enjoys himself like any teenager does.
"To not let us know where he is, is totally out of character for him.
"We are absolutely distraught at the moment," he added.
Adam is described as white, 6ft 2in tall, slim with mousey brown hair. He was wearing a maroon long-sleeved collared shirt, black jeans and black leather Nike trainers with white soles.