Police have opened a first-degree attempted murder investigation after two men were shot in a Honolulu parking lot early Sunday.

The shooting occurred in the parking lot of an illegal establishment on South King Street at about 6 a.m., according to police.

Police said an argument broke out between two groups of people. The dispute escalated when one of the males in the argument pulled out a handgun and fired several rounds, hitting two men, police said.

One of the victims, 39, was shot in the upper body and taken in critical condition to a hospital. The other victim, 41, was shot in the leg and treated and released from a hospital.

Police said the suspect, who was wearing a black shirt and blue jeans at the time, fled in a vehicle. The suspect remains at large.