Michelin launches inquiry

1 K Raikkonen (McLaren) 2 M Schumacher (Ferrari) 3 R Barrichello (Ferrari) 4 F Massa (Sauber) 5 G Fisichella (Sauber) 6 C Klien (Jaguar) 7 D Coulthard (McLaren) 8 O Panis (Toyota) Race report Race as it happened Pictures from Spa

Michelin say they will launch an inquiry into the events at the Belgian Grand Prix this weekend.

BAR's Jenson Button had a 200mph crash after suffering a tyre failure on the fastest part of the Spa track.

McLaren's David Coulthard and Juan Pablo Montoya of Williams also suffered problems with their rear tyres in an eventful race.

"We are obviously looking into the three incidents," said Michelin motorsport director Pierre Dupasquier.

"In each case the right rear was affected and that suffers the least severe loads around a lap of Spa.

"It is bizarre to have three apparently similar problems and our analysts are already investigating the cause. We will find out the root cause."

Button relieved by escape

BAR team boss Dave Richards has urged Michelin to sort out the problem ahead of the Italian Grand Prix at Monza.

"It's no coincidence that a number of the Michelin runners had problems and we need to have an investigation and get the experts on it before Monza, which is another high-speed track," said Richards.

"We thought it could be the kerbs at the Bus Stop, but Jenson wasn't sliding over them. It's a bit of an unknown."