ORLANDO — Over two dozen people injured in the Orlando nightclub massacre are still being treated at hospitals 48 hours after the shooting.

Doctors at the Orlando Regional Medical Center provided an update Tuesday morning about the injured and operations that tragic night.

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Dr. Michael Cheatham said six patients are in critical condition and another five are in guarded condition. Sixteen patients are stable at the hospital.

[PHOTOS: Victims of Pulse nightclub massacre]

One of the survivors, Angel Colon, described the dramatic shooting from the inside of Pulse nightclub.

Colon said he and his friends were ending their night around 2 a.m. Sunday when they heard a shot "out of nowhere."

He and his friends attempted to run out of the club, when they were hit with the gunfire from gunman Omar Mateen.

Colon said he was hit three times in his leg, shattering his bone. He immediately fell to the floor and felt people trampling him as they escaped the club.

Colon said the gunman was shooting everywhere inside Pulse.

"He's shooting everyone that's dead on the floor to make sure…" Colon said.

After a few moments of quiet, Colon said he began to hear the gunfire again, this time inching closer to him. He said the woman lying next to him was shot by the gunman and then thought "I'm next… I'm dead."

Colon said the gunman shot toward his head but missed and hit his hand.

A short time later, Colon recalls seeing the gunman get into a shootout with police.

Officers swarmed the club, and Colon said he remembers one officer who found him and checked to see that he was alive.

"He grabs my hand. 'This is the only way I can take you out,'" Colon said.

The officer then dragged Colon through shattered glass outside the club and across the street to safety, where an ambulance took him to ORMC.

To the doctors, Colon said he cannot thank them enough.

"If it wasn't for you guys, I definitely wouldn't be here. I will love you guys forever," Colon said.

Doctors describe night of chaos

Doctors at ORMC that treated nightclub massacre victims described a chaotic night of patient after patient arriving for trauma treatment.

At a news conference Tuesday at Orlando Regional Medical Center, doctors described "truckloads" and "ambulance-loads" of patients.

Cheatham said hospital and trauma centers prepare for disasters, but "you can never prepare adequately."

He says described great support at the hospital, saying there was "never a time we were without anything we needed."

Cheatham also says the facility escalated from two operating rooms to six within 30 to 60 minutes to care for the flood of patients.

Dr. Kathryn Bondani says the first patient that arrived was relatively stable, and the staff hoped that others would be in a similar condition. But the doctors soon got about five patients in much worse shape.

Dr. Chadwick Smith choked up a bit talking about the night. He described calling in additional staff and telling them, "This is not a drill, this is not a joke."

He says everyone answered "I'll be right there," and dozens of doctors and nurses showed up to help.

Information from the Associated Press was used in this report.

Cox Media Group