CASA GRANDE — A high-speed chase involving a possibly impaired driver on Interstate 10 through Pinal County ended Tuesday morning in Casa Grande.

More than a dozen Department of Public Safety state troopers and Pinal County deputies descended on the Circle K on McCartney Road shortly after 8:15 Tuesday morning.

Initial reports indicate a white 2011 Infinity G37 sedan with an Arizona temporary license tag was involved in a high-speed chase westbound on I-10.

The Infinity was spotted by a DPS trooper traveling on I-10 at a high rate of speed.

“Tuesday morning, at approximately 7:46 a.m., a trooper patrolling the area of westbound I-10 at around milepost 248 (Marana) noticed a white Infiniti sedan traveling at a high rate of speed, estimated at 130 mph, but was unable to catch up to the vehicle,” said Bart Graves, DPS spokesman.

The vehicle continued west into Pinal County, where another trooper located the Infinity, still traveling at a high rate of speed. That trooper initiated a traffic stop but the driver failed to yield and a pursuit ensued on westbound (north) I-10 toward Casa Grande.

Additional troopers began to stage ahead of the vehicle to deploy tire deflation devices, but the vehicle exited the highway at McCartney Road. The vehicle pulled into a Circle K store lot, where the driver of the vehicle was detained at gunpoint.

Impairment is suspected to be factor and the investigation continues, according to Graves.