ILWACO, Wash. -- The 20-foot fiberglass boat found beached on June 15 at a southwest Washington state park was indeed from Japan, officiails confirmed Tuesday.

The National Oceanic and Atmospheric Administration recieved confirmation from the Japanese consulate in Seattle that the boat came from the Tohoku region, located on the norhteastern portion of Honshu, which is Japan's largest island.

The area was hit by the 2011 tsunami and the boat was washed out to sea.

More:Details about boat beached boat

Photos: Japanese boat on Wash. Coast

New photos taken last week showed the Japanese boat flipped over on Benson Beach at Cape Disappointment State Park near Ilwaco, Wash.

Fish and Wildlife and Parks workers removed the boat from the beach on June 16, where it was checked for potential invasive species and thoroughly cleaned inside the state park. Lab samples were also taken and none of them contained invasive plants or animals, officials said.

NOAA said that as of Monday, there had been 404 total reports of potential tsunami debris along the West Coast between California and Alaska and in the ocean. That incluced 40 in just the past week alone. Of these, nine were confirmed to be tsunami debris.

That also included dock that was torn loose by the March 11, 2011, tsunami and ended up on an Oregon beach.

More: Tsunami dock washes up in Oregon

Photos: Japanese dock at Agate Beach

Most recently, kayakers surveying Washington state's most remote beaches for debris said found part of a house, along with parts of a washing machine, laundry hamper and child's toilet bowl, that they believe were from Japan, too. Those items have not yet been confirmed to be from the tsunami.

More: Kayakers find possible house parts from Japan

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