Several rollover crashes have been reported on eastbound and westbound Interstate 10.
According to the Arizona Department of Transportation, there are five crashes on westbound and eastbound I-10 between Tucson and Benson. One crash involves several vehicles.
The on ramp at Vail Road is closed for at least the next hour, according to ADOT.
Another crash has been reported on eastbound I-10 near Sunset Road.
ADOT urges motorists to drive slow because of heavy rain causing low visibility in the area.