USS Donald Cook

Two Russian planes flew close to a US guided missile destroyer almost a dozen times, American officials have said.

The Sukhoi SU-24 warplanes, in international waters in the Baltic Sea, had no visible weaponry and the ship took no action.

One official called the events on Monday and Tuesday "one of the most aggressive acts in recent memory".

The commander of the missile destroyer, the USS Donald Cook, described the flights as a "simulated attack".