The Q1 session in Australia has been red-flagged with just two minutes remaining, after a clash between Williams' Nicholas Latifi and Aston Martin's Lance Stroll.
Stroll had just joined the circuit, with Aston Martin managing to fix his AMR22 after his FP3 crash, and was gearing up for a flying lap when he encountered Latifi on the circuit.
The Williams driver moved aside to allow Stroll through but, with Stroll not on a flying lap, Latifi accelerated again to overtake his fellow Canadian by pulling to the right-hand side of the track heading towards Turn 6.
Stroll appeared to be trying to move aside to allow other cars to pass, but turned into the path of the accelerating Latifi. The front-right wheel of the Aston Martin clashed with the rear-left of the Williams, triggering a bigger accident for Latifi.
Stroll and Latifi at odds over the radio
Both drivers were uninjured in the clash, with both taking to the radio to voice their annoyance with the other.
"What the f**k is he doing?! He just hit me man," Stroll exclaimed, while Latifi radioed in to his engineer to say: "I don't understand what he was doing! The f*****g car's destroyed!"
The stewards are set to investigate the collision following the qualifying session. Both drivers were eliminated in the first part of qualifying, with Latifi in 19th with a 1:21.372 - more than a second slower than Sebastian Vettel in 18th.
Stroll was classified in 20th having failed to set a time, having missed most of Q1 while his team fixed his car following his earlier crash.