West Brom and Wolves' FA Cup clash on Sunday descended into chaos with fights breaking out in the stands.
The two Midlands sides are meeting in the fourth round of the tournament, with Wolves currently on course to go through.
Goals from Pedro Neto and Matheus Cunha have given the visitors a 2-0 lead.
But the match has now been marred by trouble in the stands, with fights breaking out in the stands as tempers boiled over.
West Brom and Wolves FA Cup clash has been suspended after trouble in the stands broke out
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Police were involved and fans were seen throwing objects and missiles, in ugly scenes that shame the footballing world.
ITV commentators said there were fights in two different sections in the ground, with police having to respind to both incidents.
Former Newcastle winger Chris Waddle, commentating for the BBC, suggested Wolves fans had celebrated in the West Brom end.
"I think some Wolves fans have celebrated in the home end and the West Brom fans have reacted to it," he said.
Wolves players started to walk down the tunnel, with a West Brom fan running on the pitch to confront them before being dragged away.
The Baggies' stars then followed suit and also walked off.
Defender Kyle Bartley was caught on camera with a child in his arms as he observed the trouble in the stands.
It seems West Brom players ran to where their family were sitting to ensure they weren't caught up in the chaos amid tension inside the Hawthorns.
BBC reporter Simon Stone said: "There are loads of police and stewards in the far corner trying to get the situation under control.
"Immediately after Matheus Cunha's goal, missiles were thrown from into and out of the visitors section.
"The fighting started at the other end of the stadium. A fan has been taken past me by police.
"There are huge numbers of police in the far corner trying to restore order."
Stone proceeded to say that a fan was taken past him with blood streaming down his face.
"Another fan has just been taken out of the home section with blood streaming down his face after suffering a cut to the top of his head," he said.
ITV reporter Katie Shanahan has provided an update, saying: "I've just been speaking to a number of the team around here and the referees are waiting for the go-ahead.
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Police were quick on the scene as violence erupted in the stands during West Brom and Wolves FA Cup clash
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"A number of the players' children are in that area.
"The referee can't go ahead until they have had confirmation from the safety team."
Fans on social media have also vented their frustrations over the incidents, lamenting the behaviour of the individuals involved.
"WBA vs Wolves.... What a disgrace to English Football!!!!!," said one user.
A second said: "Absolute disgrace! Albion fans.. Wolves fans.. all involved in that behaviour, hang your heads in shame!"
West Brom and Wolves players walked off the field as violence erupted in their FA Cup clash
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"I hope these football fans are banned for life. A disgrace for British football," opined a third.
And a fourth vented: "Wolves and West Brom fans an embarrassment to English football. Losers."
The match has now resumed after a delay of over 30 minutes.