A shooter at the Pensacola, Florida, Naval Air Station killed at least three people and injured seven others on Friday morning, local and federal officials confirmed. Sheriff deputies killed the shooter.

“Our community is secure at this time. We have no reason to believe — or are we looking for — any additional shooters within Escambia County,” Sheriff David Morgan said at a press conference.

This story is still developing. Here’s what we know, and don’t, so far.

What we know

Around 6:50 am local time on Friday, police received calls of a shooting at the Naval Air Station in Pensacola, Florida, officials said at a press conference.

At least four people, including the shooter, were killed and seven others were injured, Escambia County Sheriff David Morgan said at a press conference. Two deputies are among the injured.

Escambia County sheriff deputies killed the shooter, Morgan said.

The Pensacola Naval Air Station “employs more than 16,000 military and 7,400 civilian personnel,” according to the base’s website. Nearly 60,000 students graduate there each year.

What we don’t know