The slow fall for Marquez hasn't stopped him from continuing on for the final couple of minutes.
Marc Marquez has crashed at turn four which is his 16th fall this season.
Alex Marquez goes third fastest behind Quartararo and Vinales. FP1 is 12 minutes away from its conclusion.
The same goes for Marc Marquez who has managed to stay aboard his Honda.
Aleix Espargaro is in the gravel at turn four as is Miguel Oliveira. Both riders avoided a crash.
Augusto Fernandez has crashed at the 21/2b chicane.
Francesco Bagnaia is currently eighth fastest with just over half the session remaining, one place behind teammate Enea Bastianini.
Fabio Quartararo has taken over at the top of the leaderboard. The Yamaha rider is just ahead of Vinales after setting a time of 1:30.237s.
Marco Bezzecchi runs off circuit at turn four.
Maverick Vinales is the early pacesetter ahead of Takaaki Nakagami and Jorge Martin.
Marquez has now stopped off-track.
Disaster for Alex Marquez as smoke is coming from his machine.
And we're underway with MotoGP FP1 in Austria.
Good morning and welcome to Friday practice at the Red Bull Ring. Up first is FP1 at 9:45 UK time.