Students found a man's body in the swimming pool at Piedmont Hills High School in San Jose on Friday morning, shutting the campus down early because of the investigation.
The students found the body during their first-period swim class, and police got a call at 8:47 a.m., Officer Albert Morales said. He confirmed that the body did not belong to a student.
Homicide detectives were sent to the scene at 1377 Piedmont Road, but said it's too early to determine if foul play is suspected or not, Morales said.
Still, a source told NBC Bay Area the body was weighted down and was covered by the pool tarp when it was discovered, making the scene appear suspicious.
East Side Union High School District Supt. Chris Funk said school closed early at 11 a.m. because of the investigation.