According to the Pentagon: A Russian fighter jet repeatedly flew over US destroyer in Black Sea

A view of the destroyer USS Donald Cook is seen after it arrived at the Black Sea port of Constanta April 14, 2014. (Reuters / Bogdan Cristel)

The Pentagon said a Russian fighter jet made multiple close-range passes near an American navy destroyer. The warship was deployed in the Black Sea as Russian military monitored NATO’s systematic build-up of naval forces in the region.
The fighter appeared to be unarmed, US military said, calling the move “provocative and unprofessional”.
"This provocative and unprofessional Russian action is inconsistent with their national protocols and previous agreements on the professional interaction between our militaries," said Colonel Steve Warren, a Pentagon spokesman.
Pentagon defined the jet as a Russian Su-24 aircraft, or Fencer, which made 12 passes at low altitude near the USS Donald Cook that, at the time, was conducting a patrol in international waters in the western Black Sea, Reuters reported.
Earlier, military officials told AP that on April, 12, a Russian aircraft flew repeatedly within 1,000 yards of the USS Donald Cook at about 500 feet above sea level for over 90 minutes.
According to officials, the destroyer’s crew made several attempts to radio the Russian warplane requesting the reason for the manoeuvre. They then reportedly issued warnings to remain at a safe distance, however, there was no response from the Russian pilot.
Pentagon confirmed the fighter jet was not armed with any aerial bombs.
USS Donald Cook, a destroyer equipped with the powerful Aegis missile defense system, entered Black Sea on April, 10.
The US Defense Department claimed the ship’s mission was “to reassure NATO allies and Black Sea partners” following the events in Ukraine.
On Monday, the USS Donald Cook entered waters of Romania.