Investigation continues into a May 9 bomb threat — the second in a one-week period — at South Kitsap High School, according to Port Orchard Police Chief Geoffrey Marti.

Marti said CenCom received a call about 7:40 p.m. about a bomb threat at the school.

“We do have some leads at this point we are working on,” Marti said. “We’re going to be able to find out who is responsible this time.

He said the bomb threat was similar to the May 2 incident, but the call came in while most of the students were inside the school.

“We were advised that students were inside the school and the caller made threats regarding the outside of the school,” said Marti. “At that point in time, they decided to use a ‘modified lockdown.’ ”

He said during a modified lockdown, the school keeps students inside and screen the students who come in afterward.

Port Orchard police officers, along with personnel from the U.S. Navy Region Northwest’s bomb squad, responded to the threat.

“That was done while we conducted our activities outside the school,” he said. “We checked the exterior of the school and brought a bomb dog in.”

According to Twitter, at 7:40 a.m., the high school went into a modified lockdown due to police dealing with a student outside of the school.

South Kitsap School District officials provided information through Skyward and the district’s website.

On May 2, the school received a call at 12:30 p.m. from a male who said there were some explosives and possible firearms at SKHS, the largest high school in the state with more than 2,200 students.

SKSD officials decided to let school out 30 minutes early while the Navy Region Northwest’s bomb squad, which brought in a pair of “bomb-sniffing” dogs to checked inside and outside the school building.