HONOLULU (KHON2) — Emergency crews responded to a rescue at Ko Olina Lagoon 4 on Thursday morning after two men were found in distress in the water.

At around 9:45 a.m., Emergency Medical Services (EMS) were called to the scene after one man, identified as a 33-year-old male, was found unresponsive in the ocean near the rocks.

A second man in his 70s witnessed the situation and entered the water to assist in bringing the unresponsive man to shore.

First responders immediately began performing CPR on the 33-year-old, who was critically injured.

The second man who attempted the rescue sustained minor injuries including abrasions and lacerations.

He was also treated on-site by EMS and transported to the hospital.

The incident is still under investigation.