A man has drowned after diving into water at a disused quarry.

The 28-year-old, who STV understands is named Mark O'Brien, was pulled from Craigiehill Quarry, near Kilmarnock, on Monday night.

He is understood to have dived into the water around 8pm, but failed to resurface.

Police said his body was recovered shortly before midnight.

A post-mortem will take place, but it's believed there are no suspicious circumstances.

A police spokeswoman said: "Around 8.30pm on Monday, May 28, officers were called to a report of a man jumping into water at Craigiehill Quarry, near Kilmarnock.

"Emergency services attended and the body of a 28-year-old man was recovered from the water around 11.55pm.

"A post-mortem will take place in due course to establish the exact cause of death, however there would not appear to be any suspicious circumstances surrounding the death."

Site owner Hillhouse Quarry Group said its thoughts were with the man's family and warned others to stay away.

In a statement, the firm said: "The company would like to express its deepest sympathies to the victim's family and friends.

"The site is regularly inspected to ensure boundary fences and warning signs are maintained and life belts are available.

"The company asks that, for their own safety, members of the public keep away from the site and do not take access."