Three men attacked revellers at a Halloween party in Dundee with knives and baseball bats.

Rossco Stern, 23, of Glasgow, and Charlie Hill and Gary Thoms, both 33 and of Dundee, were caught on camera carrying out the attack after turning up uninvited to a party on St Boswells Terrace.

One of the victims, dressed as Count Dracula, was repeatedly struck with a baseball bat, while another was left with a huge stab wound in his neck.

At Dundee Sheriff Court on Tuesday, the trio were told they faced lengthy jail terms after being convicted of the attack, described by a sheriff as "one of the worst outbursts of violence" he had seen.

CCTV footage captured the three men entering the flat and leaving half an hour later after being thrown out for sparking an argument.

A string of party-goers wearing fancy dress - including a nurse, a man in drag, The Joker and a crime scene investigator - can be seen spilling on to the street.

Liam Holt - dressed as Dracula - and friends Fraser Nicoll and Michael Craib were then set upon as they tried to run away from the gang.

Witnesses said they thought one of the victims had died as a result of what fiscal depute Vicki Bell described as a "frenzied attack".

CCTV footage was shown repeatedly to a jury at Dundee Sheriff Court during a four-day trial.

In the footage, Mr Holt can be seen being thrown to the ground before one of the gang repeatedly strikes him on the head with a baseball bat while another, identified as Thoms, takes wild kicks at his head.

Knives are then seen being brandished and repeatedly used on the victims who eventually break free and flee the scene.

Pictures of Mr Craib's injuries show a deep gash on his neck.

He told the court: "It was only just above my jugular. I had been wearing a boiler suit as part of my costume. I went back to the flat and took it off.

"When I went back outside Liam was on the ground - I thought he was dead."

Stern and Hill pleaded guilty on indictment to two charges each of assault to severe injury and permanent disfigurement on the third day of their trial.

Thoms continued to deny the charge of assaulting Liam Holt to his severe injury and permanent disfigurement but a jury of seven men and eight woman took three hours to find him guilty of the charge.

Sheriff George Way deferred sentence until next month for social work background reports and remanded all three in custody.

He said: "This is a crime of very serious gravity. It is perhaps one of the worst outbursts of violence I have ever had to witness through CCTV. It was sustained and brutal.

"You should be in no doubt that a custodial sentence of some lengthy is at the forefront of my mind."