The organisers of Rally Mexico have announced that SS9 has been cancelled on safety grounds.
The decision was taken after rocks were thrown at Thierry Neuville's Citroen
DS3 WRC car on the first run through this morning, cracking his windscreen.
The 23.69 kilometre Ortega 2 test had been due to run at 15.36 hours local time.
A statement from the organisers read: "Rally Guanajuato México 2012 regret that car number 8, driven by Thierry Neuville and Nicolas Gilsoul, was struck by a rock thrown at the car on Stage 5 Ortega, this morning. Both driver and co-driver were fortunately not harmed and are continuing in the event.
"The Organisers of the Rally are quite clear that this dangerous behaviour by an irresponsible individual is completely unacceptable. To ensure the safety of the competitors the second running of that stage (Ortega SS9) has been cancelled.
"We urge all spectators to support us to ensure the safe running of this World Championship event."
Following the decision to can it, competitors will move directly from Los Mexicanos 2 (SS8) to the Monster Street Stage in Leon (SS10). The day's competitive distance is now cut to 122.47km.