Three people were killed after an armed person opened fire at a school in New Mexico.The shooting reportedly took place at Aztech High School, San Juan County Sheriff's Office said Thursday.

Sheriff Ken Christesen told reporters that three people believed to be students died Thursday at the high school. He says the shooter also was dead but didn't say if the suspect was among the three.

Authorities said they had cleared all the buildings at the school and that students were boarding buses to another location where they could be reunited with their parents.

Deputies with the sheriff's office and surrounding police departments responded to the school after reports of a shooting. Federal agents and state police are investigating.

The school is in the Four Corners region and is near the Navajo Nation.