Qualifying in Monaco was suspended with a little over two minutes of Q3 remaining after a heavy shunt for Sauber's Sergio Perez. Perez lost control at high speed exiting the tunnel and impacted side-on with the barrier at the Turn 10.
It took several minutes for medics to extract the Mexican from his car, after which he was transferred to an ambulance and taken to hospital in nearby Nice. Sauber CEO Monisha Kaltenborn reported Perez was conscious and responding to questions.
While team mate Kamui Kobayashi qualified 13th, Perez - should he be fit to race - will start tenth on the grid.
Initial reports are that Perez is complaining of headache and pain in his right leg, but that he has escaped serious injury - further details on his condition as they become available.