Commuters beware: traffic headed into the city is backed up past Riggs Road.

A two-vehicle rollover collision on State Route 347, just north of Cobblestone Farms Road, has caused traffic to back up approximately 12 miles toward Queen Creek Road, according to Arizona Department of Transportation.

Lanes are not currently blocked, according to the Arizona Department of Public Safety.

DPS officers responded to the collision just before 3 p.m. The cause of the collision and injuries were unknown.

Maricopa Traffic Cameras – ADOT – SR347 – InMaricopa