VIRGINIA (United States) — The U.S. Navy’s newest ship has been towed to a base in Virginia after breaking down at sea.

According to the Navy Times reports, the littoral combat ship, the USS Milwaukee, had to be towed more than 40 nautical miles to Joint Expeditionary Base Little Creek after suffering an engineering casualty on Friday.

The ship was on its way to Mayport, Florida from Halifax, Canada and ultimately its home port of San Diego when it suffered an engineering casualty.

The cause is being evaluated by ship’s crew and technical consultants.Officials say it appears that metal debris collected in the lube oil filter caused the system to shut down.

The USS Milwaukee was built in Marinette, Wisconsin and was commissioned in November in Milwaukee. It’s now making the trek to its home base in San Diego.

Officials say they will swap crews in Virginia while the ship’s system is being repaired.