A fourth homeless man has been found dead in Belfast city centre, it has emerged.

He was found in a shop doorway in High Street yesterday.

It is believed he was in his 40s or 50s and had been living on the streets for a number of years.

Three others have died while living rough in Belfast during the last month - two deaths occurred outdoors and a third at a branch of McDonald's.

Another person who had a history of homelessness died shortly after being housed.

The Police Service of Northern Ireland has confirmed officers are investigating the sudden death of a man in High Street and a post-mortem examination will be carried out.

Charities have called for action to address the growing problem of homelessness.

A petition urging Belfast City Council to open up empty buildings has attracted more than 16,000 signatures.

It is expected to be handed to the local authority following a demonstration on Friday.