A dust storm impairs visibility on I-10 near Toltec on Jan. 21, 2010. John Humenik, Arizona Daily Star

ARIZONA DAILY STAR

A tractor-trailer rolled onto its side this afternoon on Interstate 10 near Picacho, causing the westbound lanes to be blocked and restricting traffic.

No injuries were reported and no other vehicles were involved in the incident, which occurred in the westbound lanes, according to the Arizona Department of Public Safety.

The stretch of I-10 between Picacho and Casa Grande has been the site of high winds and dust storms that have caused limited visibility along the highway, DPS said.

Another collision involving two tractor-trailers happened earlier this afternoon on the interstate less than 10 miles west of the rollover crash.

One of the tractor-trailers rear-ended the other truck in the westbound lanes.

No injuries were reported, but this collision also restricted traffic on the interstate.

DPS has issued a dust storm and high wind warning for I-10 between Tucson and Phoenix.

Further south, DPS has reported snow falling on Arizona 82 near Sonoita.

Motorists are advised to use caution.