Lando Norris took pole position in a memorable and chaotic Formula 1 sprint qualifying session in the rain at Shanghai.

In a madcap rain-hit final qualifying segment, Norris set a time comfortably good enough for pole, then had it briefly deleted, then had it reinstated to give him first place on the grid for the Saturday morning race.

In those moments after the deletion, pole position briefly belonged to Lewis Hamilton instead, with the Mercedes having struggled badly in the dry before coming alive in Hamilton's hands once the track conditions changed.

The session was disrupted by yet another grass fire at the side of the track - following one in practice earlier - that the FIA has linked to the sparks being produced by the cars.

The small delay between the first and second segment to get it cleared up meant that the expected rain arrived in the final minutes of SQ2, ruling out any second attempts. By SQ3, it had comprehensively soaked the track.

Each of the 10 drivers who hade made it through chose intermediates to challenge for sprint pole - and there were no takes for the wet compound despite drivers visibly struggling to keep their cars on the road.