The disappearance of a pensioner in Edinburgh is being treated as murder after police arrested and charged two suspects.

The 75-year-old former biology teacher, Peter Coshan, was last seen in the Seafield area of the city at around 11:50pm on August 11. He was reported missing the next day.

However, after police arrested two men, aged 27 and 63, they are now treating his disappearance as murder.

His body has not yet been recovered.

Police Scotland’s major investigation team is appealing to the public for any information in connection with Mr Coshan’s death.

Detective Superintendent Andrew Patrick said: “Our thoughts are very much with Peter’s family at this difficult time.

“Extensive inquiries are ongoing to trace Peter and I would encourage anyone with any information regarding Peter’s disappearance to contact police as a matter of urgency.

“Any piece of information, no matter how small or insignificant you think it is, could prove vital so please do pass it on to officers.

“We have also set up a website that gives members of the public access to a form to send information directly to the major investigation team.

“You can select to remain anonymous when submitting information.”