A JEALOUS man launched a violent attack on his ex lover’s male colleague when he saw them in a car together and threatened to kill him.

Alan Hadden “lost control” after he followed his former partner almost 20 miles, from Lanarkshire to Dumbarton Road in Glasgow, when he saw her in the passenger seat.

When her colleague, Stuart Gibb, parked his car, Hadden leaned through the passenger door and threatened “I’m going to f****** kill you” and punched him.

Hadden, 39, from Motherwell, North Lanarkshire pled guilty at Glasgow Sheriff Court to assaulting Mr Gibb to his severe injury and permanent disfigurement on June 29, last year.

The court heard that Siobhan Curley is the former girlfriend of Hadden and at the time of the attack worked with Mr Gibb.

Miss Curley and Hadden’s relationship ended at the end of 2015 although there had been contact since then.

Procurator fiscal depute Mark Allan said Miss Curley and Mr Gibb were travelling to a work site in Clydebank and stopped briefly at shops on Dumbarton Road.

He said: “Another car parked further along the street where two men, one of which was the accused, exited the vehicle and approached the vehicle of Mr Gibb.

“Mr Gibb, still sitting in his vehicle, heard Miss Curley shout ‘that’s Alan’, referring to the accused.

“Each of the men approached each side of the car so there was one at either door.

“Hadden leaned in through the passenger door, saying as he did to Mr Gibb ‘I’m going to f****** kill you’, punching him on the head as he did.”

Mr Gibb managed to get out of the car and ran across the road, in the direction of Clydebank and was pursued by Hadden and his friend.

The pair attacked Mr Gibb, he was punched and kicked on the head and body before they drove off again.

Mr Reid added his client accepts he “lost control” and now regrets his actions.

Sheriff Danny Scullion deferred sentence until next month and continued Hadden’s bail.