Newcastle United manager Alan Pardew's headbutt on Hull player David Meyler was labelled "unacceptable" by England's League Managers' Association chief executive Richard Bevan on Sunday.

The Magpies boss was involved in one of the most extraordinary confrontations in Premier League history when he clashed with Meyler during his side's 4-1 away win at the KC Stadium on Saturday.

Pardew was fined £100,000 ($167,000) by Newcastle, who stopped short of sacking the fiery Englishman, and seems certain to face disciplinary action from the Football Association.

"It's unacceptable, it's inappropriate and it's insupportable from every perspective and Alan knows that," Bevan told BBC Radio Five's Sportsweek programme.

"He immediately realised the serious error, (made) sincere apologies to all parties and obviously (has) deep regret.

"It was good to see (Hull manager) Steve Bruce's reaction and Hull accepting (Pardew's apology).

"But Alan does need to think hard about how not to put himself in that position again."

Pardew said after the match he would have to "to sit down and stay out of the way" in future rather than roam his technical area to avoid getting caught up in similar incidents in future.

Former Liverpool defender turned BBC Match of the Day pundit Alan Hansen said Pardew was fortunate to still be in a job.

"The pictures are very, very bad," Hansen said.

"There was outrage and understandably so. There was not a lot of provocation, Newcastle were 3-1 up and absolutely cruising.

"The only ones who can sack him are Newcastle and they've taken the view to give him a massive fine and warn him."

Former Scotland international Hansen added: "He's a lucky, lucky man. I don't know what he was doing getting involved in the first place."

Meanwhile Robbie Savage, a former Wales midfielder who played for several Premier League clubs, said Pardew ought to be banned for 10 games.

"He shouldn't be allowed in the ground for the last 10 games of the season," Savage told BBC Radio Five.

"How can you manage a group of players when you have done that to one of their fellow professionals?"

Bevan added: "I was pleased to see Newcastle in a very short period of time making a very swift, professional response that provided Alan with a very heavy fine and a formal warning."

He also said the LMA was looking at ways to have managers positioned further away from the touchline in a bid to prevent future flare-ups.

"We did a technical report six or seven months ago, interviewing 40 referees and 40 managers, and we're looking at the moment how the technical area works in America, for example, in other sports and seeing how we can look to improve several problems that occur because of the positioning," Bevan explained.

However, he accepted the tight dimensions of some of England's older football grounds would pose problems, particularly given the need to keep managers and coaching staff away from supporters.

"But what we can do is make a serious effort to look at how the technical area should be placed," said Bevan.

Former Crystal Palace manager Steve Coppell, who signed Pardew as player for the Eagles in 1987, said: "First and foremost, it was just wrong. He was the first to admit that."

Pardew has a history of explosive touchline bust-ups, including a furious row with Arsenal boss Arsene Wenger during his time at West Ham, and Coppell added: "He has got previous...He will regret it.

"I signed Alan from non-league football and, with all respect to him, it was a bit of a non-league reaction."