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At least four people were killed and dozens more were injured when a semi-trailer and a Greyhound bus carrying 49 people crashed on a New Mexico interstate on Thursday, authorities said.
New Mexico State Police Officer Ray Wilson said the semi-trailer blew out a tire, crossed the median into oncoming traffic and collided with the bus on Interstate 40 near Thoreau, about 100 miles west-northwest of Albuquerque. He said that several people were critically injured and that more deaths were expected.
Gallup Indian Medical Center told NBC News that it was treating about 37 patients, four to six of whom were transported to a trauma center. University of New Mexico Hospital in Albuquerque said it was expecting six patients, three of whom were in critical condition.
Greyhound had initially said 47 passengers were aboard the bus, which was traveling from Albuquerque to Phoenix. No cause had yet been determined, the company said.
The National Transportation Safety Board said it was sending a team to investigate.