KINGMAN, Ariz. -- Four people were killed Sunday when a bus carrying Dallas Cowboys staffers but no players collided with a van on a northwestern Arizona highway.
The fatalities were people in the van (three female passengers and one male), Arizona Department of Public Safety spokesman Quentin Mehr said. He did not release their identities.
"An accident involving loss of life is tragic," Cowboys owner Jerry Jones said in a statement Monday. "We as an organization are deeply saddened, and our thoughts, prayers and concerns at this time are with the family members and loved ones of all who were lost."
The bus occupants were uninjured.
"All on the bus came through OK with some bumps and bruises," Cowboys spokesman Rich Dalrymple said Sunday in an email.
Dalrymple said the bus was only carrying members of the franchise's staff but would not say how many.
Among those on board the team bus were DallasCowboys.com columnist Mickey Spagnola, a team mascot and a team videographer.
The two vehicles collided in the afternoon on U.S. 93, about 30 miles north of the city of Kingman, according to Mehr. The van was turning left at an intersection when it collided with the Cowboys' bus.
The crash shut down at least one lane of the highway that serves as the main route between Phoenix and Las Vegas.
The bus was on its way to a Dallas Cowboys fan event in Las Vegas. Charles Cooper, manager of GameWorks entertainment center in Vegas, said the session with 50 to 75 fans was scheduled for 3 p.m. PT. People were already waiting when the president of a Las Vegas Cowboys fan club called to relay news of the crash. The event was subsequently canceled. Cooper said the team mascot was supposed to appear.
After the Las Vegas stop, the bus was scheduled to go on to Oxnard, California, for the team's training camp. Members of the organization typically take a bus two weeks before the camp starts and make stops along the way.
The Associated Press contributed to this report.