Dozens injured when passenger tries to take wheel of Greyhound bus

PHOENIX, Arizona (CNN) -- A passenger tried to grab the wheel of a Greyhound bus Sunday, causing the vehicle to turn onto its side and injuring about 30 people, the Arizona Department of Public Safety reported.

The bus was southbound on I-10 at Casa Grande about 1:06 a.m. (3:06 a.m. EST) when the man approached the driver, said Officer Hyrum D'Addabbo.

The passenger was arrested. No weapon was involved, D'Addabbo said.

During the scuffle, the bus drove off the pavement, then back onto the roadway before tipping onto its side, blocking traffic, D'Addabbo said.

Lynn Brown, Greyhound vice president of corporate communications, said the bus, carrying 38 passengers and the driver, was en route from Phoenix to El Paso.

Thirty people were taken to area hospitals, where two were listed in critical condition, Brown said. The bus driver was not admitted, and many of the passengers were treated and released.

It was an "isolated incident involving an unruly passenger," Brown said.

Casa Grande is about 40 miles south of Phoenix.

In October, a man on a Greyhound bus in Utah tried to take control from the driver and, when he failed, escaped in a separate vehicle. The incident occurred east of Salt Lake City.

Also in October, six people died and 32 were injured when a man slit the throat of a Greyhound bus driver in Tennessee and the bus flipped on its side.