Fernando Alonso uninjured after being airlifted to hospital

The McLaren driver hit a wall at the Circuit de Catalunya circuit on Sunday on the exit of the 150 mph Turn Three, but the BBC has reported that he is "OK and conscious".

Alonso was reportedly airlifted to hospital from the circuit's medical centre after the crash, but it has been called just a precautionary measure.

"Today at 12:35 CET, while testing at the Circuit de Catalunya (Barcelona), during the fourth and final day of the current test, Fernando Alonso's McLaren-Honda car left the track at Turn Three, causing the right-hand side of his car to strike the wall," said McLaren in a statement.

"Fernando was driven to the circuit's Medical Centre where the circuit's doctors gave him first aid.

"He was conscious and spoke with the doctors.

"However, as per usual procedure in such circumstances, he was then airlifted to hospital where he is undergoing precautionary checks.

"We will issue a further update in due course."

Alonso's former team Ferrari sent the Spanish driver a tweet wishing him the best.

He has rejoined McLaren in the belief that their new partnership with Honda can provide him with the scope to claim a third world title.

Alonso went into the inside wall on the run between Turns 3 and 4 during McLaren's strongest run of the session.

He had missed the first two hours as Honda configured its engine following the overnight arrival of the new MGU-K seal design intended to fix the problem that had limited running through the week so far.

Once on track, Alonso progressed up to fifth place on medium tyres before going off on his 21st lap of the day.