Leiva says 'half' the 49 people who died were in the bathroom with him

The video shows injured club-goers huddled on the floor of the stall, passing a cup of water around

Leiva, a cancer survivor, says he sent the video to his worried girlfriend during the shooting to let her know he was OK

Miguel Leiva, a survivor of the Pulse nightclub shooting, has shared video he took while hiding inside a bathroom at the club

A survivor of the Pulse nightclub shooting has shared the tragic cell phone footage he took while hiding out in a stall during the three-hour shooting.

Miguel Leiva, a cancer survivor from Miami, was visiting Orlando last weekend when he decided to go out for a night on the town.

When Omar Mateen opened fire inside the Pulse nightclub early Sunday morning, Leiva and about -'fifteen to 20' other people locked themselves inside a bathroom and waited to be rescued by police.

New video has emerged, showing victims in the Pulse nightclub shooting hiding out in a bathroom stall during Omar Mateen's three-hour standoff with police

Many of the people hiding out in the bathroom were nursing gunshot wounds. The above clip shows the hostages passing around a single glass of water

The video footage was taken by Miguel Leiva, who survived the shooting but is recovering from two gunshot wounds

All the while, many of the people who were inside the locked stall were nursing gunshot wounds, some dying before help could be reached.

In an interview with WPLG on Wednesday, Leiva shared a short clip he took inside the bathroom stall, to send to his worried girlfriend after she found out about the shooting situation.

'We just stood quiet, and everyone's phone kept ringing,' Leiva said. 'The only way we knew to let our families know we're OK was just to record it and let them hear we're trying to be quiet and send the video.'

Leiva says he took the video to send to his worried girlfriend so she could know he was still alive

'She's asking me, "Are all those people dead next to you?" And I'm like, "I can't get out,"' Leiva said. 'There was one cup in the bathroom and we rinsed the cup, trying to give everybody a little bit of water.'

Leiva, a cancer survivor, continued to recover in the hospital from his gunshot wounds

The short clip shows survivors packed on the floor, passing a cup of water around.

Some of the victims are speaking to each other, and someone shushes them to be quiet. Later, a woman is heard sobbing.

'She's asking me, "Are all those people dead next to you?" And I'm like, "I can't get out,"' Leiva said. 'There was one cup in the bathroom and we rinsed the cup, trying to give everybody a little bit of water.'

Leiva himself suffered two gunshot wounds in the shooting, but he was saved when police punched holes in the club walls to rescue the hostages.

'We were just waving our hands so they could see we were alive, but we were still trying to be quiet,' Leiva said. 'They start pulling people out.'

Leiva continues to recover in the hospital. He says he feels lucky to be alive, but is troubled by how many familiar faces he saw on the list of the 49 dead.