Zhou Guanyu has provided a positive update after his huge crash at the British Grand Prix, saying that the vehicle's halo saved his life.

A red flag was waved during the opening lap of Sunday's race at Silverstone, after Mercedes' George Russell was clipped by Pierre Gasly.

Zhou was subsequently caught by Russell, with his Alfa Romeo flipped over and sent hurtling onto the run-off area, and remained upside down until it collided heavily with the barrier.

The car flipped as it hit the barrier and was ultimately wedged below the fence in front of the grandstand.

Zhou received immediate medical attention, but Alfa Romeo confirmed the Chinese driver - debuting this season in Formula One - was conscious.

As Carlos Sainz went on to win his first race for Ferrari, Zhou gave an update on his official Twitter account, thanking fans for their well wishes and crediting the halo, a titanium ring secured above the cockpit, with saving him.

The 23-year-old tweeted: "I'm ok, all clear. Halo saved me today. Thanks everyone for your kind messages!"

It was the second time at Silverstone on Sunday that the halo came to the rescue of a driver, with Formula Two driver Roy Nissany benefiting from the safety device on his car when Dennis Hauger's vehicle landed on top of his Williams.