A voicemail message containing bogus bomb and mass shooting threats Friday was the latest in a two-week series of menacing calls directed at San Ysidro High School.
Police officers were sent to investigate after an employee at the Airway Road campus heard the message shortly before 8 a.m., according to San Diego police. The caller, who left the message sometime overnight, said there was a bomb at the school and threatened to shoot every student and staff member.
A search of the school did not turn up anything suspicious and the campus was not locked down, San Diego police Officer Frank Cali said. However, two officers were assigned to stay on campus for the remainder of the day.
At least a half-dozen similar threats, most or all apparently made via the Skype Internet application, have been directed at the school near the U.S.- Mexico border since Jan. 14.
The calls initially prompted lockdowns, but administrators implemented less intensive security precautions in response to the rest, as advised by police, according to Sweetwater Union High School District spokesman Manuel Rubio.
San Ysidro High's principal, Hector Espinoza, said that although the threats were considered "low level," school officials took them seriously and were taking precautions to protect students and staff.
"Rest assured that the Sweetwater Union High School District, San Ysidro High School and the San Diego police will take whatever legal means necessary to identify, apprehend and prosecute the person or persons responsible for these acts," Espinoza said.
School and district officials have met with police to discuss the investigation into the threatening calls and have requested help from other agencies to gather information, he said.