The American guided missile destroyer USS Porter appears to have come off second best in the clash with the 312,000-dwt Otowasan (built 2005).

Photos released by the US Navy show the hull of the warship penetrated by the tanker’s bow with crew members inside the vessel inspecting the damage.

The extent of damage to the Otowasan is not known but no injuries or pollution are reported as a result of the collision.

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