The Seawolf-class fast-attack submarine USS Connecticut (SSN 22) departs Puget Sound Naval Shipyard for sea trials following a maintenance availability. (U.S. Navy photo by Thiep Van Nguyen II.)

WASHINGTON: The attack submarine Connecticut (SSN-22) struck an unknown object on Oct. 2 while operating in international waters, the Navy’s Pacific Fleet confirmed in a statement today. None of the crew sustained any life threatening injuries.

“The submarine remains in a safe and stable condition. USS Connecticut’s nuclear propulsion plant and spaces were not affected and remain fully operational,” according to the service statement. “The extent of damage to the remainder of the submarine is being assessed. The U.S. Navy has not requested assistance. The incident will be investigated.”

The full extent of the damages to boat and crew as well as what effect the incident may have the sub’s near-term operational schedule are all unknown. But the incident is sure to attract lawmaker attention given the Navy’s history with submarines being unavailable due to maintenance and repairs, as well as the broad concerns in Washington on China’s naval buildup.

It is unclear exactly where the incident occurred, as the movement of attack submarines are carefully guarded. USNI News first reported the collision; per that report, the Connecticut has been making its way to Guam on the surface since Saturday. Navy Times reported the ship has arrived back in Guam.