Dave Jones was saddened that the behaviour of visiting supporters marred an entertaining night of football at Hillsborough on Friday.
The Owls and Leeds played out a cracking 1-1 draw under the S6 lights but all the talking after the game focused on the Whites’ fans – one of whom attacked Wednesday keeper Chris Kirkland following the West Yorkshire side’s late leveller.
Jones said: “I’m really sad that we’re not talking about the football but what we saw tonight is unacceptable.
“They should be banned from every away ground now. They should be punished. It is just upsetting that they are able to do it.
"The authorities have to look at it and sort it. I'm talking about an incident when we should be talking about the football."
On the pitch, the Owls’ boss agreed that the performance was arguably the best of the season so far for his side.
He said: “We were magnificent tonight, absolutely magnificent and I thought we should have won the game.
“The way we moved and passed the ball and pinged it about was great to watch.
“We should have had a penalty because their lad has dived and handled the ball – if anything it was a great save!
“But listen, I have been saying for some time that we have been very close to getting where we want to be and there were signs of that tonight.
“All I can say is that sooner or later, someone is going to get a good hiding.”