A teenager left two men permanently scarred in separate attacks only 20 minutes apart in Dundee.

Jamie Murphy was having a "very bad night" when he left two men disfigured on June 17 last year.

Murphy, now 20, and a friend attacked Allan Mitchell at Rosebank Street in Dundee, repeatedly kicking and punching him on the head and leaving him seriously injured and permanently scarred.

He has already been sentenced to three years in detention for that attack, after being found guilty at Dundee Sheriff Court.

Murphy appeared at Perth Sheriff Court on Thursday to be sentenced for another attack carried out only 20 minutes after the first.

Fiscal depute Stuart Richardson told the court that Ryan Devaney, a complete stranger to Murphy, was walking to the pub to meet his girlfriend when he was attacked on Strathmartine Road, Dundee.

Murphy and two others started throwing glass bottles at the stranger, one of which hit him on the forehead, causing a cut which needed three stitches and will leave a scar.

Mr Richardson said: "This was the culmination of a very bad night as far as Mr Murphy was concerned."

Sheriff Lindsay Foulis added another nine months to the three year sentence.