Lewis Hamilton and Nico Rosberg are out of the Spanish Grand Prix after they collided on the opening lap.
Hamilton, starting from pole position, lost the lead to Rosberg and in attempting to pass his Mercedes team-mate he ran on to the grass at turn three.
The world champion then appeared to lose control of his car, spun, and crashed into Rosberg.
Both drivers ended up in the gravel trap at turn four with Hamilton holding his head in his hands.
Hamilton, already 43 points behind Rosberg in the championship, launched his steering wheel out of his Mercedes in fury.
The safety car was instantly deployed, with Red Bull's Daniel Ricciardo leading the race, while the stewards revealed they would investigate the crash.
Meanwhile, Niki Lauda, Mercedes's non-executive chairman, he appeared to point the finger at Hamilton for causing the collision.
"It is stupid, we could've won this race," Lauda told BBC Radio 5 Live. "Lewis is too aggressive.
"I need to talk to them and hear their explanation and then we will see what happens."
Hamilton and Rosberg arrived back in the paddock, both still with their crash helmets on, before heading straight to the Mercedes' debrief truck.