Crew members of a San Diego-based destroyer are helping in the search and rescue effort for the missing Malaysian airlines flight MH370.
The U.S. Navy released video of an MH-60R Sea Hawk helicopter from the USS Pinckney lifting off from the ship in the Gulf of Thailand Monday.
The ship was already conducting training and maritime security operations when it was re-routed to help look for the flight that vanished from radar screens between Malaysia and Vietnam.
The Malaysian Boeing 777 disappeared Saturday less than an hour after taking off from Kuala Lumpur, Malaysia, bound for Beijing.
There were 227 passengers and 12 crew members onboard the aircraft.
The search operation has involved 34 aircraft and 40 ships from several countries covering a 50-nautical mile radius.
Army Col. Steve Warren, a Pentagon spokesperson, told reporters Monday that USS Pinckey and USS Kidd were using a "creeping-line" search method, Warren said.
The Pinckney investigated a possible debris field Sunday, he added, but it was not the missing aircraft.
Seahawk helicopters are using forward-looking infrared pods to search at night.
The Pentagon has also sent a P-3-C Orion aircraft from Japan to help in the search.