WASHINGTON (Reuters) - A Chinese warship has seized an underwater drone deployed by a U.S. oceanographic vessel in the South China Sea, triggering a formal diplomatic protest and a demand for its return, U.S. officials told Reuters on Friday.
The incident, the first of its kind in recent memory, took place on Dec. 15 about 50 nautical miles northwest of Subic Bay off the Philippines just as the USNS Bowditch, an oceanographic survey ship, was about to retrieve the unmanned, underwater vehicle (UUV), officials said.
"The UUV was lawfully conducting a military survey in the waters of the South China Sea," one official said, speaking on condition of anonymity.
"It's a sovereign immune vessel, clearly marked in English not to be removed from the water - that it was U.S. property," the official said.
The Pentagon later confirmed the incident at a news briefing. It said the drone used commercially available technology and sold for about $150,000.
Still, the Pentagon viewed China's seizure seriously since it had effectively taken U.S. military property.
"It is ours, and it is clearly marked as ours and we would like it back. And we would like this not to happen again," Pentagon spokesman Jeff Davis said.
The seizure by the Chinese Navy will add to concerns about China's growing military presence and aggressive posture in the disputed South China Sea, including its militarization of maritime outposts.
A U.S. think tank this week said new satellite imagery indicated China has installed weapons, including anti-aircraft and anti-missile systems, on all seven artificial islands it has built in the South China Sea.
Mira Rapp-Hooper, a senior fellow in the Asia-Pacific Security Program at the Center for a New American Security, said China would have a hard time explaining its actions.
"This move, if accurately reported, is highly escalatory, and it is hard to see how Beijing will justify it legally," Rapp-Hooper said.
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