FORT MILL, S.C. -- After a melee and mass shooting in the middle of Myrtle Beach, many travelers are now questioning their vacation plans.

A gunman opened fire on a crowd of people who were blocking traffic around 12:30 a.m. Sunday morning, according to a Myrtle Beach police spokesperson.

According to witnesses, a fight broke out and shortly after someone began shooting.

The fight, shooting and aftermath were captured on Facebook Live by Bubba Hinson, a vacationer who was in his hotel room.

By Monday, the video was viral, with more than 4 million views.

The Facebook Live video was the talk of travelers at the South Carolina welcome center on I-77.

"That's terrible, it is terrible," says James Wooten, Jr., who was driving from Shelby to Myrtle Beach Monday morning. "We've been talking about it since we saw it last night."

Wooten, who is traveling with his daughter and grandson for vacation, says he is concerned about their safety.

"For something like that to happen at a place like that with that many kids... it's a terrible thing," he says.

Vacationers say they expect to see increased police presence in the boardwalk area.

"The police are really strict down there," says William Parnell, who stopped for a quick break on his way to Myrtle Beach. "I wouldn't be surprised if I saw the National Guard."

A security guard near the scene responded to the gunfire and shot the gunman, according to police. His name has not yet been released.

None of the injuries from the shooting are expected to be life threatening, authorities said.

Parnell is bringing his firearm and conceal carry permit with him on the trip as a precaution.

"I believe it was either drinking alcohol or on drugs and that's all it takes," he says. "Somebody's got a gun, that's it. Somebody's gonna get shot."