Firefighters were sent to Lafayette Elementary School Wednesday morning for a suspected bomb threat, according to San Diego Fire Department.
The school is located at 6125 Printwood Way just north of Clairemont Mesa.
This is the second time this week the school has had a bomb threat.
Metro Arson Strike Team units were also sent out for possible acid bombs found on campus, according to SDFD. The two unexploded acid bombs were discovered on campus this morning.
Investigators talked to a 15-year-old boy who lived nearby and he confessed to throwing the bombs over his fence onto school property, said SDFD spokesperson Maurice Luque.
He could face some charges, but officials said he will not go to juvenile hall.
The school was not locked down during the incident and there were no injuries.