East High School was under lockdown Thursday morning for a short time after multiple threats were reported at the school.
Salt Lake City police Detective Cody Lougy said police responded to the high school after two 911 calls were received: one reporting a bomb threat, another a report of shots fired at the school.
It appears that both calls were made by the same person, Lougy said, and were made through a captioned telephone.
By 10:20 a.m., police lifted the lockdown as they found no signs of either threat at the high school.
"It appears this is just a prank," Lougy said.