The Nürburgring 24 has been red-flagged after six hours due to poor visibility in a dense fog around the German circuit.
Cars were ordered back to the pits when the clock hit 9:30 p.m. local time on Saturday, at the one-quarter distance milestone. Further information is due at 10:30 p.m local.
Haupt Racing Team’s No. 4 Mercedes-AMG GT3 Evo led at the red flag, with Adam Christodoulou at the wheel having taken over from Manuel Metzger at the car’s fifth stop.
Christodoulou, Metzger, Luca Stolz and Maro Engel – who is yet to drive HRT’s No. 4 Bilstein car – held an advantage of just under 40 seconds from the second-placed Schubert Motorsport BMW M6 GT3 with defending winner Alexander Sims at the wheel.
The Manthey Racing Porsche 911 GT3 R, which led early on through Kevin Estre before dropping behind HRT in the third hour, had slipped to fifth by the six-hour mark.
Matteo Cairoli was running 45 seconds off Christodoulou at the top of hour six, but the Italian ended up behind Sims, Phoenix Racing Audi driver Kim Luis Schramm and No. 98 ROWE Racing BMW driver Sheldon van der Linde after the fifth pit sequence.
Schramm’s No. 11 Audi R8 LMS GT3 Evo was right on the tail of Sims’ BMW when the red flag was called.
The German driver had recently taken over from Nicki Thiim, who made a handful of overtakes to bring Audi’s top entry into contention for the podium positions.
Van der Linde was a further 16 seconds back in fourth, and 25 seconds clear of Cairoli.
The pole-sitting No. 1 ROWE Racing BMW enjoyed a brief spell in the lead when HRT and Manthey pitted midway through the sixth hour, until Nick Yelloly brought the 2020-winning car in for its fifth scheduled stop that returned it to just outside the top five.
Dennis Olsen was running seventh in the No. 31 Frikadelli Racing Porsche, from Audi Sport Team Land’s Rene Rast and the two Mercedes-AMG Team GetSpeed entries.
A notable casualty between hours four and six was the Scuderia Cameron Glickenhaus 004C, which Richard Westbrook parked o one side on the GP circuit after spinning at Turn 1. The cause of the car’s issue is unclear at this stage.
Last year’s N24 edition, which took place in September was put under an overnight flag after seven hours of racing due to heavy rain.