TOKYO — A Japanese driver was killed early Sunday morning in a collision with a military truck driven by a United States Marine stationed in Naha, Okinawa, according to the Marine Corps.

The Okinawa prefectural police identified the Marine as Nicholas James-McLean; the public broadcaster NHK gave his age as 21. No further details about his rank or station were immediately available.

The Marine Corps said he had been injured in the crash, which was under investigation.

Kyodo News reported that the police were questioning the Marine and had administered a breath test that showed he was three times over the Japanese legal blood-alcohol limit, which is lower than that of the United States and most countries.

Japan’s Ministry of Foreign Affairs issued a statement confirming that the Marine had been driving under the influence of alcohol. A spokesman for U.S. Forces Japan said the Marine was in the custody of the police on Okinawa.