At least one person died and four others were injured in a shooting outside a Houston club early Sunday, authorities said, according to CNN.

“Over 50 shots were fired” in the parking lot of “some type of club/bar,” Harris County Sheriff Ed Gonzalez said during a news conference.

Police responded to the shooting around 2:00 a.m. and learned that five people had been shot, said Gonzalez. All of the victims were hospitalized.

One person died and police were still trying to determine the extent of the injuries sustained by the four victims, he added. Two men and three women were believed to have been shot.

“It looks like over 50 shots were fired here, which is a very scary situation considering there’s a mobile food truck and … the number of patrons that were outside,” he said.

The information officials had was “preliminary,” but the gunfire appears to have been a drive-by shooting, said Gonzalez.

Homicide investigators are looking into the shooting and trying to find witnesses.