Public security

Police: Approximately 20 dead inside Florida nightclub after mass shooting

Approximately 20 people are dead inside Pulse, a gay nightclub, Orlando Police Chief John Mina said Sunday morning, just hours after a shooter opened fire in the club. At least 42 people have been transported for medical treatment, he said.

Police have shot and killed the gunman, Mina told reporters.

"It's appears he was organized and well-prepared," the chief said, adding that the shooter had an assault-type weapon, a handgun and "some type of (other) device on him."

At least nine officers were involved in the shootout, Mina said. Several coroner vans were seen traveling toward the nightclub.