Police in Northern Ireland have found a body believed to be that of a teenager missing in Belfast since Sunday.

The body was found shortly before 9.45am this morning in a storm drain close to the area where Noah Donohoe was last seen.

Family liaison officers from the PSNI broke the tragic news to his mother.

No foul play is suspected.

A huge search operation had been mounted this week, with hundreds of members of the public helping police and specialist teams.

Police believe the 14-year-old fell off his bike and sustained a head injury shortly before 6pm on Sunday.

The PSNI held a media briefing this afternoon.

The officer who led the search for the teenager, Superintendent Muir Clark, said that while there is not yet any official identification, they believe the body is that of the teenager.

"Our thoughts and sympathies are with Noah's family and we are continuing to provide support to them at this very difficult and heart-breaking time," he said.

He said a specialist police team had been searching the storm complex throughout the week, but only got to the section where Noah Donohoe was found this morning as it was almost a kilometre long and the conditions were "extremely challenging".

The officer thanked the hundreds of members of the public who helped in the search operation and contacted police with information.

Police still do not know why the missing teenager cycled across Belfast to the area where he died and are examining the contents of his laptop and mobile phone.

"Hopefully the electronic devices will give both us and his family the answers that we seek," he said.

Superintendent Muir described the search as one of the most unusual missing person cases of his 30 years in policing.

Today, it came to a tragic end.