Sources: Arrest to be made soon of alleged accomplice in Pulse mass shooting

Law enforcement officers could make an arrest in the next few days of someone who allegedly helped the Orlando gunman carry out the mass shooting inside Pulse nightclub that killed 49 people this weekend, sources told WFTV Monday.

"We have no reason to believe that anyone connected to this crime is placing the public in imminent danger at this time," said US Attorney Lee Bentley.

Gunman Omar Mateen, 29, opened fire at the Orlando nightclub early Sunday, leaving at least 49 people dead and 53 wounded before he was killed in a shootout with SWAT team members.