San Ysidro High School
San Ysidro High School. Photo courtesy of Google Street View

For the fourth time this month, someone made a bogus bomb threat against San Ysidro High School on Monday.

San Diego police got word of the call to the Airway Road campus shortly after 1 p.m., San Diego police spokesman Humberto Hernandez said.

Unlike the previous threats, administrators did not put the campus on lockdown, Hernandez said. Officers searched the grounds and found nothing suspicious.

Monday’s caller apparently used a computer-generated voice, as did whoever called in threats Jan. 14 and Jan. 15, police said.

No arrests have been made, and police have yet to identify any suspects.

— City News Service