Two U.S.-piloted F-16 fighter jets destroyed an unmanned surface vessel in the Black Sea on Monday after it approached Romania's Neptun Deep gas platform, a critical energy asset located 100 miles offshore, NATO officials confirmed.

The Pentagon said the F-16s were deployed from the U.S. Air Force's 31st Fighter Wing based at Aviano Air Base, Italy. Defense Secretary Lloyd Austin approved the mission after consultations with Romanian counterparts and NATO leadership.

Romanian President Klaus Iohannis authorized the defensive action following intelligence reports indicating the drone was headed toward the platform with hostile intent. The Neptun Deep platform, operated by OMV Petrom and Romgaz, is Romania's largest deep-water gas project and is projected to supply 30 percent of the nation's natural gas needs by 2027.

A NATO spokesperson in Brussels said the alliance remains committed to defending member states' critical infrastructure. "This incident underscores the volatile security environment in the Black Sea, particularly for energy assets," the spokesperson said. "NATO forces remain vigilant and prepared to respond to threats against any member state's sovereign territory or critical infrastructure."

The drone's origin remains under investigation by Romanian and NATO intelligence agencies. U.S. Ambassador to Romania Kathleen Kavalec is scheduled to meet with Romanian Foreign Minister Luminița Odobescu on Tuesday to discuss enhanced Black Sea security measures. The incident is expected to be a central topic at the NATO defense ministers' meeting in September.