WATCH: Heavy Hadjar crash causes red flag in US GP Qualifying

Isack Hadjar caused the first red flag of Qualifying for the United States Grand Prix with a heavy crash on his first flying lap of the session.

Five minutes into Q1, Hadjar lost the rear of his Racing Bulls machine into Turn 6, before spinning into the wall, causing significant damage.

The crash means that he will start Sunday's Grand Prix from either the back of the grid or the pit lane, depending on the repairs required or whether the team elects to alter the set up choices.

Click on the player above to watch Hadjar's session-ending moment.