Michael Schumacher has apologised for Jean-Eric Vergne after he slammed into the back of him during Sunday's Singapore GP.
For the second year running, Schumacher's night in Singapore came to an abrupt end with the nose of his Mercedes meeting the back of a rival's car.
Last year it was Sauber's Sergio Perez, this year it was Toro Rosso's Vergne.
With the race resuming on lap 39 after a Safety Car period the field was bunched up with Vergne and Perez fighting for position ahead of Schumacher.
But while those two braked for the corner, Schumacher instead locked up and drove into the back of the Toro Rosso at speed, putting both himself and the Frenchman out of the car.
"After the Safety Car I broke a little early, then the car didn't accelerate and then I just went straight on the brakes and it locked up," Schumacher explained to the BBC.
"The accident was unavoidable.
"I feel sorry for Jean-Eric and for his team but we need to find out what happened now."