Ferrari's Fernando Alonso won an incident-packed Korean Grand Prix Sunday to take over the lead in the F1 world title race as his Red Bull rivals Mark Webber and Sebastian Vettel were unsuccessful to finish.
The race began under security car conditions after rain soaked the Yeongam circuit on Saturday night and for most of Sunday.
Drivers completed three laps in the order they practiced for the race in the dry on Saturday before the race was red-flagged.
With rain easing, race officials set a re-start time for 4:05 pm local time (0705 GMT). Britain's Jenson Button of McLaren, the reigning world champion, said the conditions were "like driving totally blind, waiting to hit something".
Spaniard Fernando Alonso told his Ferrari pit crew that the conditions were "the most horrible I ever drove a car".
Australian Mark Webber, the world championship leader for Red Bull Racing, said: "The aquaplaning is not actually crazy, but the water is sitting in one layer all the way around. When you can't see, you can't have a car race."