Five people were killed Saturday night when an SUV being pursued by U.S. Border Patrol agents crashed east of Tucson, officials said.

The rollover wreck happened around 11 p.m. on Interstate 10 and Arizona 83, the Department of Public Safety said.

The vehicle had 20 people on board and was being pursued by the Border Patrol, said Chief Willie Treatch, of Rural/Metro Fire Department. DPS officials also characterized it as a pursuit.

Five people were declared dead at the scene and 15 were taken to Tucson hospitals with minor to serious injuries, DPS said. The deceased included one man from Mexico and four men from Guatemala, said Oscar de la Torre, the Mexican consul in Douglas.

“We are working with the Mexican consulate in Tucson and U.S. authorities to learn more about the incident,” he said.

Officials from the Border Patrol did not respond to queries.

Senior Editor, News, Arizona Daily Star, Tucson, Az.