Just two weeks after its last save, Guam-based Helicopter Sea Combat Squadron 25 rescued a Chinese mariner suffering a medical emergency at sea on Tuesday, a Navy statement said.

The save was the Island Knights squadron’s 16th this year.

It happened during stormy weather after U.S. Coast Guard Sector Guam alerted the squadron to a “distressed mariner” aboard the Chinese-flagged oil tanker CSC Brave, according to the statement. Within two hours, a squadron search and rescue crew left Andersen Air Force Base aboard an SH-60 Seahawk to rescue the person from the tanker.

Two crewmembers were lowered onto the Chinese vessel to check on the patient and prepare him to be hoisted into the Navy helicopter amid 15-foot waves, Lt. Michael Sipah, the Seahawk’s co-pilot, told Stars and Stripes in an email Thursday.

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