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Ryan Austin Calhoun, 23, of Mobile, Ala., and Delonte' Martistee, 22, of Bainbridge, Ga. were charged with sexual battery by multiple perpetrators in connection with an incident in March in Panama City, Florida.

(Bay County Sheriff's Office)

A woman was "gang raped" on a crowded Florida beach last month while bystanders apparently did nothing to help her, the sheriff says.

Two college students from Alabama were arrested Friday in connection with the Panama City Beach attack on the 19-year-old woman, The Panama City News Herald reported. More arrests were expected, police said.

The woman appeared to be incapacitated during the attack by several men on a chair behind the Spinnaker Beach Club. a popular hangout for students on spring break. The incident went unreported even though hundreds of people were around to see it occur during daylight, police said.

Authorities didn't learn about the incident until, while investigating an unrelated shooting, Troy, Alabama, police came across a cellphone video of the attack, CNN reported. Troy police turned over the video to the Bay County Sheriff's Office.

Troy University students Ryan Calhoun, 23, and Delonte' Martistee, 22, were charged with sexual battery by multiple perpetrators in connection with the attack, according to a statement from the sheriff's office.

The rape occurred sometime between March 10-12, authorities said.

The woman seen in the video was identified by authorities, who told them she didn't report this incident because she was possibly drugged and didn't recall it, AL.com said. Authorities said she was a visitor to Panama City.

Bay County Sheriff Frank McKeithen on Friday called the video of the incident the "most disgusting, sickening thing" he has ever seen.

"Within 10 feet from where this is happening there are hundreds, hundreds of people standing there watching, looking, seeing, hearing what is going on, and yet our culture and our society and our young people have got to the point where obviously this is acceptable somewhere, but I will tell you it is not acceptable in Bay County," McKeithen said.

McKeithen said he "will not back off" in seeking changes to better control criminal acts during spring break in Panama City Beach, AL.com said.

It was unclear Saturday whether the two suspects had attorneys, The Associated Press said.

said the two students have been temporarily suspended pending the investigation. It added that Martistee has been dropped from the track and field team.