All six crew members aboard a US Navy helicopter miraculously survived a crash into San Diego Bay Thursday evening, according to reports.

The MH-60R helicopter hit the water at around 6:40 p.m., Navy Cmdr. Beth Teach, a Naval Air Force Pacific Fleet spokesperson, confirmed to Fox 5 San Diego.

The helicopter had been performing routine training when it went down.

“Due to the nature of the training, a safety boat was on location and, with the assistance of Federal Fire, all six crew members survived and were promptly moved ashore,” Teach said.

“All personnel are undergoing medical evaluation at this time.”

An investigation is underway to determine the cause of the crash.

The US Coast Guard is on the scene to assist with the incident.

The helicopter had been stationed at Naval Air Station North Island and is part of the HSM-41, a “fleet replacement” or training squadron.

This is a developing story.