Former F1 driver, and current BBC commentator, Martin Brundle says he feels that Red Bull Racing faces 'a civil war just when they are on the cusp of victory' following the controversial collision between Mark Webber and Sebastian Vettel in Turkey.

The pair collided while fighting for the lead in Istanbul with Vettel forced to retire and Webber dropping back to third place - handing McLaren a 1-2 finish and what could prove to be a vital maximum score in the constructors' championship.

The blame game started as soon as Vettel exited his car, with the German using the commonly known symbol for 'mental' as he walked away from his damaged machine, while Christian Horner and Helmut Marko have both suggested that Webber should have allowed his team-mate through.

However, Brundle - who called the incident as Vettel's fault during the BBC's coverage of the race - again insisted that the blame couldn't be placed at Webber's door and that Vettel turning into his team-mate 'wasn't the right answer' when it came to finding a way through.

"Vettel was into the slipsteam of his team-mate heading at 200mph towards the obvious overtaking point of the turn twelve hairpin," he wrote in his latest blog for the BBC website. "Webber instinctively defended and left an F1 car-sized gap at the side of the road on the dirty, unused part of the track. Vettel chose to take it and moved alongside and then slightly ahead.

"At this point the German either realised he would never stop in time, or he wanted to muscle and intimidate Webber across the road to ensure a better line into the hairpin. It was a deliberate move of the wheel from Vettel, not a slide under braking. Unsurprisingly, Webber never moved, contact was made, Vettel was out of the race and Webber's car was damaged.

"I spoke with Christian Horner and Helmut Marko of Red Bull immediately after the race. They asked how I called it on TV and I told them I said it was 100 per cent Vettel's fault for swerving into Webber. They clearly disagreed and said that Webber should never have been squeezing his team-mate onto the dirty part of the race track when as a team they needed to be defending against the ever-present McLarens.

"There's some substance to that argument but the bottom line is that Vettel turning right into the side of Webber's car was not the right answer."

Brundle added that Red Bull shouldn't have expected Webber to simply yield the position as he chased a third straight victory and that Red Bull now faced the prospect of a 'civil war' between its drivers which it needs to sort out as soon as possible.

"The team can't expect Webber to score three consecutive dominant pole positions and wipe the floor with all comers, including his team-mate, in the previous two races in Spain and Monaco and then suddenly turn all passive the first time Vettel makes a move on him," he continued. "If Webber had lifted or moved over he may as well have just handed the world championship trophy to his team-mate and headed back to Australia. He had to stand his ground.

"The problem Red Bull have is that it seems clear they favour their prot?g? Vettel to take the title over Webber, who is eleven years older. They can't claim to treat both drivers equally and then apparently favour one because the whole situation will implode between the two sides of the garage.

"Red Bull have assembled a tremendous group of people who have demonstrated the experience, dedication, and competitive energy to rise up and match the finest teams such as Ferrari and McLaren, who have decades of history and experience. They have worked together to fight the enemy but now they face a civil war just when they are on the cusp of victory.

"This is a delicate moment and absolute honesty and clarity behind closed doors is the only solution. They must channel the competitive energy of the drivers and their support crew on each side of the garage into positive results for the team with clear ground rules. And then stick by them."