A U.S. Navy sailor shot and killed two people at the historic military base at Pearl Harbor, Hawaii on Wednesday, military officials said, before fatally shooting himself.

The shooter died from "an apparent self-inflicted gunshot wound", the officials said in a press briefing, adding that a third victim is in stable condition after being hospitalized.

"We have confirmed that two (victims) are deceased. One is in stable condition in a local hospital. I can also report that the shooter, who has tentatively been identified as an active-duty sailor assigned to USS Columbia SSN 771, is also deceased by an apparent self-inflicted gunshot wound," Rear Admiral Robert Chadwick said.

Authorities have thwarted another mass shooting. A 13-year-old boy was planning a mass shooting at his Los Angeles school but police were able to stop him and seize his weapons.

Among the items taken was an assault-style rifle with about 100 rounds of ammunition, according to CNN's Josh Campbell.

https://twitter.com/joshscampbell/status/1197973092544454658

According to NBC News, "the discovery was made in response to a call about a student who wanted to shoot other students and staff. He added that the suspect, who was not immediately identified, purchased parts on the internet to build a "ghost gun" — meaning it was assembled at home and had no serial numbers, a way for owners to avoid registering them."