Charles Leclerc led Lewis Hamilton to a Ferrari one-two in first practice at the Monaco Grand Prix as Isack Hadjar crashed his Red Bull.

Leclerc was 0.226 seconds quicker than Hamilton, with Red Bull’s Max Verstappen 0.513secs off the pace in third place, ahead of the Mercedes of Kimi Antonelli and George Russell.

Hadjar lost control on the entry to the second Swimming Pool chicane, the rear swinging around on entry and spinning him into the barriers on the exit.

And Fernando Alonso rescued what could have been a high-speed crash at the harbour front chicane in his Aston Martin.

The rear flicked sideways as he went over the crest at the start of the braking point, and as he corrected, the car fishtailed, sending the front towards the barriers.