Lando Norris and Oscar Piastri have been disqualified from the Las Vegas Grand Prix following a technical infringement.
Norris ended the race in second place to extend his title lead over Piastri, who classified in fourth.
However, both cars were placed under investigation after the chequered flag when the skid planks were found to have excessive wear.
McLaren visited the stewards at 23:45 local time where they heard from the officials and gave their own input.
The planks were found to be below the minimum 9mm thickness required at the end of every grand prix.
The double disqualification is the first time in McLaren's history that both its cars have been thrown out of the classification.
With both cars removed from the results, George Russell has been promoted to second place while Mercedes team-mate Kimi Antonelli has taken the final spot on the podium.
Norris has maintained a 24-point lead over Piastri, but following his win in Las Vegas, Max Verstappen is now level on points with the Australian driver with two rounds remaining.
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