The Offaly man lost control of his vehicle.
Alex Dunne suffered another tough weekend in Formula 2.
The Offaly driver crashed out of the feature race in Miami on Sunday after ran wide at the final corner, lost control, and slammed into the barriers.
The Offaly driver, who had secured third in the sprint race the day before, was running sixth on lap 10 of the main event before the incident.
Gabriele Minì of MP Motorsport was the overall winner, with the next race set for Montreal in three weeks time.
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