Jermaine Towns, left, and Brandon Shuford wait down the street from a multiple shooting at a nightclub in Orlando, Fla., Sunday, June 12, 2016. Towns said his brother was in the club at the time. A gunman opened fire at a nightclub in central Florida, and multiple people have been wounded, police said Sunday. (AP Photo/Phelan M. Ebenhack) 
Orlando Police officers direct family members away from a multiple shooting at a nightclub in Orlando, Fla., Sunday, June 12, 2016. A gunman opened fire at a nightclub in central Florida, and multiple people have been wounded, police said Sunday. (AP Photo/Phelan M. Ebenhack) What we know
MASS CASUALTIES: At least 50 people are dead, and 53 were hospitalized, most in critical condition, officials said. A surgeon at Orlando Regional Medical Center said the death toll was likely to climb. ___ THE SHOOTER: Authorities have identified the shooter as Omar Mateen of Port St. Lucie, Florida. His father, Mir Seddique, told NBC News that his son got angry when he recently saw two men kissing in Miami a couple of months ago. He said that might be related to the attack. Seddique said the attack had nothing to do with religion. ___ ACT OF TERROR?: Orange County Sheriff Jerry Demings called the attack a “domestic terror incident.” Other authorities said they are looking into whether the attack was an act of domestic or international terror, and if the shooter acted alone. FBI agent Ron Hopper said there was no further threat to Orlando or the surrounding area. When asked if the gunman had a connection to radical Islamic terrorism, Hopper said authorities had “suggestions that individual has leanings toward that.” ___ WHAT HAPPENED: Police say Mateen opened fire on patrons early Sunday. He also exchanged fire with an officer working at the club about 2 a.m., when more than 300 people were inside. Police say the gunman then went back inside and took hostages. Police sent in a SWAT team to rescue hostages about 5 a.m. and Mateen died in an exchange of gunfire with SWAT officers. ___ SECOND DEADLY SHOOTING IN TWO DAYS: The attack follows the fatal shooting late Friday of 22-year-old singer Christina Grimmie, who was killed after her concert in Orlando by a 27-year-old Florida man who later killed himself. Grimmie was a YouTube sensation and former contestant on “The Voice.”
2:55 p.m.
People who were inside the gay Florida nightclub where 50 people were killed are describing a scene of mass chaos.
Two men who were in Club Pulse discussed the Sunday massacre in Facebook chats with The Associated Press.
Orlando resident Brand White was shot. He says, “We are dancing and all of a sudden it just started like a rolling thunder, loud and everything went black.”