Butte, MT : Two die in rollover crash on I-90 near Butte on Sunday, August 7, 2016

Speed may have been a factor in a rollover crash that killed a woman and her husband on Interstate 90 near Butte on Sunday, according to a Montana Highway Patrol trooper.

The 46-year-old man died at the scene, and a female passenger, 34, was taken to St. James Healthcare, where she was pronounced dead. Trooper Gail Keith Jr. said the woman’s injuries included “severe head” trauma.

The couple was not from Butte, said Butte-Silver Bow County Coroner Lee LaBreche. The victims' hometown and names were not released pending notification of family members.

The male driver was eastbound in a dark green 1999 Chevy Tahoe with Montana plates on I-90 one half mile north of the Continental Drive interchange about 8:40 a.m. when his SUV veered left toward the median, said Capt. Gary Becker, Highway Patrol District III commander.

The driver overcorrected, and the vehicle rolled multiple times down a steep embankment, crashing into a fence adjacent to an industrial area, the trooper said. The woman wore a seat belt; however, her husband did not.

The crash remains under investigation by the Highway Patrol.

Katie DeWeert, who lives in a nearby apartment complex, heard the crash and saw a big plume of dust and smoke. She said two semi-trailers went by the accident without stopping before emergency vehicles arrived.

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UPDATE: Two die in rollover crash on I-90 near Butte