Lewis Hamilton has described the incident which forced him out of this afternoon's qualifying session for the Hungarian Grand Prix as "pretty bad".
The Briton had to pull off the track following an engine failure which resulted in a fire at the rear of his Mercedes.
The 2008 world champion told BBC Sport: "The engine just died. I thought I'm right next to the pit entry, so I'll roll back and at least get them to fix it. And then I looked in my mirrors and it was on fire.
"The team said [over the radio] stop, stop, stop. I tried to stop but the brakes weren't working, the car's kind of rolling forward, the engine's kind of sometimes working or not working, so it's all pretty bad."
Hamilton's teammate Nico Rosberg will start from pole position.
