Orlando nightclub shooting: what we know now

ORLANDO, Fla. — Officials say at least 50 people, including the shooter, are dead and 53 injured after gunfire broke out at Pulse Nightclub in Orlando, Florida, early Sunday, police said.

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LIVE VIDEO VIA WFTV:

WATCH LIVE: Coverage of mass shooting at Pulse nightclub

WFTV COVERAGE of the shooting that killed 50 people at Pulse nightclub. Here's the latest: http://at.wftv.com/1XPTLPi

Posted by WFTV Channel 9 on Sunday, June 12, 2016

LATEST UPDATES:

11:56 a.m. ET: Sen. Bill Nelson says a the Pulse shooting may likely have ties to ISIS, citing "credible sources" and intelligence committee staff.