That's it for Q1.
Aldeguer and Mir are the riders that have advanced to Q2, while Fernandez was the first rider to miss out.
Fernandez will be joined on the fifth row by LCR duo Moreira and Zarco.
Q2 is underway at COTA. Who will grab pole for the United Stated Grand Prix?
That's it for Q1.
Aldeguer and Mir are the riders that have advanced to Q2, while Fernandez was the first rider to miss out.
Fernandez will be joined on the fifth row by LCR duo Moreira and Zarco.
Aldeguer has done what Johann Zarco and Quartararo couldn't which is remove Mir from top spot.
The Gresini rider has set a time of 2m00.977s.
Fernandez stays second but there are plenty of red sectors, currently.
Fernandez is putting pressure on Mir's fastest time, as is Quartararo following his earlier fall.
There's just five minutes remaining of Q1 as Mir continues to lead from Raul Fernandez.
Mir goes even faster on his second lap, while Fabio Quartararo has gone down at turn 15.
It was a nasty fall for the French rider, who was nearly hit by his M1.
Aldeguer is the first rider to come across the line but his time is immediately beaten by Pramac Yamaha rider Toprak Razgatlioglu.
The first part of qualifying for the US MotoGP is underway.
Some big names including Raul Fernandez, Joan Mir, Fabio Quartararo and Fermin Aldeguer are all taking part in Q1.

That's it for FP2 at COTA.
The top ten was:
The crashes keep on coming in Texas, and this time it's Ogura that goes down once again.
That's Ogura's second fall in this session.
Martin goes fastest after setting a time of 2m01.563s.
Moreira is next to go down at turn two, while Marc Marquez has just replaced Bezzecchi at the top of the timingsheets.
Fast crash for Gresini's Alex Marquez at turn two as the front-end washes out.
He's not the only one though, as Bezzecchi has also gone down which could be big news ahead of qualifying. The Italian's leathers have been heavily damaged from the front-end fall.
Diogo Moreira is currently up in eighth place aboard his LCR Honda.
Toprak Razgatlioglu is 12th as it stands with 12 minutes of FP2 remaining.
15 minutes gone of the 30-minute FP2 session and it's world championship leader Marco Bezzecchi that leads the way for Aprilia.
Fabio Di Giannantonio is second ahead of fellow Ducati star Francesco Bagnaia.
Trackhouse Racing's Ai Ogura has suffered an early fall at the final corner.
The Japanese rider lost the front-end of his Aprilia but was able to quickly re-join the action.
FP2 will conclude at 15:40pm UK time, before qualifying takes place at 15:50pm.
Good afternoon everyone. The final MotoGP practice ahead of the United States Grand Prix is underway at COTA.