Schumacher passed Alesi on lap 2, but his teammate Patrese only lasted until the fourth lap when his suspension failed. While Prost built up a substantial lead, Senna was under pressure from Hill who took second on lap 11. On lap 25, Senna was issued a stop-go penalty for lapping a backmarker under yellow flags and dropped behind Schumacher. There was a heavy rain shower, and many drivers pitted for wet tyres, including Senna, Schumacher and Hill, while Prost stayed out on slick tyres. Several drivers spun, with both Ukyo Katayama and Aguri Suzuki crashing on the start–finish straight on lap 27, the Footwork partially blocking the circuit and bringing out the safety car – the second time this had been seen in Formula 1 following its trial at the Canadian Grand Prix several years earlier. Fittipaldi spun at the first corner on lap 30 with his car stopped in the middle of the track. With the rain coming down harder, Prost lost control and, unable to avoid Fittipaldi's car, crashed into him, taking them both out of the race. As the wreckage was cleared, the new safety car controlled the field, Hill led Senna, Schumacher (who had lost time during his pit stop because his car fell off the jack), Alesi, Johnny Herbert, and Lehto. They were followed by Alessandro Zanardi, Philippe Alliot, Mark Blundell, Derek Warwick, rookie Luca Badoer, Karl Wendlinger, Andrea de Cesaris, Érik Comas, and Michele Alboreto.