RENO, Nev. (AP) — Another round of snow snarled traffic with more than a dozen crashes on slippery roads in the Reno-Sparks area and triggered chain controls on Interstate 80 in the Sierra.

The Nevada Highway Patrol says at least 18 traffic accidents were reported Tuesday during the morning commute in Reno and Sparks, where several inches of snow fell in some areas.

READ MORE: Sacramento Authorities Hope Recent Illegal Fireworks Arrest Shows Department Means Business With Crackdown

One crash involved a state trooper’s vehicle. No serious injuries were reported.

Chains were mandatory for a 55-mile (66-kilometer) stretch of I-80 from the California-Nevada line west of Reno over the top of Donner Pass in Placer County California. The only exception is four-wheel vehicles with snow tires.

READ MORE: Steve Large's Full Interview With Governor Gavin Newsom

Ten inches (25 centimeters) of new snow was reported Tuesday in the mountains north of Reno near Susanville, California where about 3 feet (1 meter) of snow has fallen since the storm began Saturday. Another 9.5 (24 cm) inches also was reported just south of Lake Tahoe at Myers, California.

Several areas around Lake Tahoe have received more than 2 feet (60 cm) of snow since Saturday, including 27 inches (68 cm) at the Mount Rose Ski Resort southwest of Reno.

MORE NEWS: Murder In Wheatland: Wife Of Suspected Killer Says Husband Was Conspiracy Theorist

You can check current road conditions here.