As information still continues to pour in from the airport shooting down in Florida, we are now getting reports of a second shooter. TSA posted this tweet well after the original reports of the shooter being taken into custody, prompting questions as to whether or not this was a delayed tweet or a second shooter.

Update: Active shooter at #FLL. Shelter in place. Airport closed.

— TSA (@TSA) January 6, 2017

Other news outlets began reporting it as a second shooter based on TSA’s tweet. The Sheriff’s department then put out this tweet.

Active search: Unconfirmed reports of addt'l shots fired on airport property.

— Broward Sheriff (@browardsheriff) January 6, 2017

Meanwhile, the initial shooter has been identified as Esteban Santiago… by a U.S. Senator.

Senator Bill Nelson on MSNBC right now. Says shooter has been identified as Esteban Santiago – carrying a military ID #FortLauderdale

— Stewart Moore (@Stewartmoore) January 6, 2017

The situation on the ground is still currently unknown, but what we do know is that the airport is closed, law enforcement is still on active alert, and that currently there are five dead from the initial shooting.