Fans arrested after match clash

37,000 people were expected at Thursday's game

Thirteen people were arrested over public order offences at a match between Leeds United and Millwall.

West Yorkshire Police mounted a huge security operation at Elland Road for the League One semi-final play-off on Thursday night.

Police said the arrests had been made both inside and outside the ground after incidents of public disorder.

Games between the two League One clubs have been repeatedly marred by violence over the years.

A West Yorkshire Police spokeswoman said it was not yet clear whether those arrested were Leeds or Millwall fans.

Millwall fans had to pick up their tickets from a motorway service station ahead of the game in a police bid to stop potential troublemakers at the match.

The game ended in a 1-1 draw, giving Milwall an aggregate 2-1 win and a place in the play-off final at Wembley.