Lewis Hamilton and Max Verstappen are among many drivers who are facing an investigation after the sprint race at Zandvoort.
Hamilton endured a difficult qualifying session on Friday afternoon and could only set the seventh-fastest lap at the end of SQ3.
Verstappen, meanwhile, was one spot ahead of him in sixth - but he too will see the stewards after the race.
The duo have been flagged for “failing to follow the race director's instructions” in the build-up to Saturday's race.
The same alleged infringement was carried out by Cadillac's Valtteri Bottas and Racing Bulls' Yuki Tsunoda, who will also be investigated after the session.
Also being called to the stewards' room is Gabriel Bortoleto, who was summoned for an alleged unsafe release in the pit lane prior to the race start.
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