Riot police were pelted with bottles as they battled to restore order in the north stand concourse and police dogs were used to drive fans back from the pitch.

Eight catering staff were trapped inside a food kiosk and had to barricade themselves in a store room for around 25 minutes as fans broke in and stole cash from the till and food from the shelves.

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Pitch-side stewards also had food hurled at them.

"No-one was injured during this time but one police officer suffered a minor facial injury," said a spokesman for South Yorkshire Police.

"Eight fans were arrested, four Manchester United fans and four Barnsley fans.

"They have been taken to Barnsley police station."

Elsewhere in Barnsley, two people were also arrested after fans jumped onto railway tracks in a bid to stop a train leaving the town.

"The club is going to launch a full investigation as soon as possible after substantial damage was caused in the concourse of the north stand," said a spokesman for Championship side Barnsley.

"A complaint has been made to the police and we will be taking a look at CCTV footage of the incident before we can comment further."