Gunfire erupted outside a Philadelphia nightclub early Sunday, striking at least six people, authorities said.

The apparent drive-by shooting unfolded around 3:30 a.m. outside Trilogy nightclub on 6th and Spring Garden Streets in the Northern Liberties neighborhood, FOX29 Philadelphia reported, citing police.

At least six women were wounded and rushed to local hospitals. One victim is in critical condition, while five others are reported to be stable.

Police said there may be more victims involved in the shooting.

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A man with a gunshot wound walked into Temple University Hospital around the time of the shooting but was too intoxicated to remember where he was when the shooting started, police told the station.

Surveillance video showed another woman at a nearby gas station inside a car with a man covered in blood. The vehicle had New Jersey license plates.

Police are checking New Jersey hospitals for victims with similar injuries, the station reported.

Authorities did not immediately announce any arrests or release any suspect descriptions. No weapons were recovered at the scene.

Fox News Digital reached out to the Philadelphia Police Department but did not immediately hear back.