This is from a book I have
October 25th 1969
Carnage At The Hawthorns
Over 300 West Bromwich Albion supporters, and nearly 40 Police Officers had to receive hospital treatment today after pitched battles with rioting Manchester United fans, angry at the Albion's fans constant chanting of "Munich 58" Fighting raged non stop behind the popular "home end" as thousands of United fans, many of whom had run the full length of the pitch to join in the fighting, vented their fury at the opposing supporters
Police on horseback and with dogs fought in vain to try and bring the crowd under control, at one point, after several dozen fans wearing Manchester United scarves ran across the pitch carrying one of the huge crush barriers that they had somehow wrenched out of the terracing and then hurled into into the Albion fans like a battering ram, it seemed unlikely that the match would even start.
After repeated calls for calm from both Sir Matt Busby and Denis Law the fans did stop fighting long enough for order to be restored. During the match fighting started at various points around the ground as United fans hell bent on attacking anyone wearing a Black & White scarf roamed the terraces looking for trouble. Several Albion players reported that they were wary about going too near the touchline's were groups of United fans were gathered as they were met with a barrage of missiles
More violence continued after the match as thousands of Manchester United fans went on a rampage of vandalism, houses around the ground had their windows smashed, in several streets not a single window was left intact. In the Town Centre United fans stormed through the main thoroughfares, running over the tops of cars, smashing windows and on one occasion attacking a bus full of passengers.
Police stated they had tried to arrest several of the Man Utd fans but they were immediately attacked by dozens more and had to let them go, several Police Cars were severely damaged
Retailers say the damage bill would be "astronomical"
Scores of people were treated for cuts and bruises and a nearly 400 needed to seek hospital treatment, several of these are in a serious condition, including one Police Officer who sustained a fractured skull
A spokesman for the Official Manchester United Supporters Club said although the scenes were deplorable, there had been ill feeling by the United fans towards West Brom for several years now because of the singing of songs that mocked the death of Busby Babe Duncan Edwards, who died from injuries he received during the Munich air crash
And that is nothing to what happened at Old Trafford