Russian driver Mikhail Aleshin ended his Indianapolis 500 with a crash that also accounted for American star Conor Daly at just over half distance of the 100th running.
And there was drama in the pit lane when Andretti Autosport team-mates Townsend Bell and Ryan Hunter-Reay collided, with both drivers being forced to pit for repairs, with the former being penalised with a stop-go penalty for the incident.
It was disappointing for both drivers, with both Bell and Hunter-Reay having led multiple laps on several occasions during the early phase of the race.
Aleshin had been one of the stars of qualifying, with the Schmidt Peterson Motorsport driver losing control entering turn one, while Dale Coyne Racing’s Daly spinning in avoidance but also hitting the wall and damaging his car.
Aleshin was out on the spot, while Daly recovered to the pits, but was forced out of the race with his car too damaged to continue.
It was the third caution period for a crash after earlier incidents for Sage Karam and Juan Pablo Montoya, while the first caution was for debris.