KODIAK, Alaska (AP) — Dozens of fly swatters bearing logos of collegiate and professional sports teams have been washing up on the beaches of an Alaska island.

The fly swatters found on Kodiak were believed to be debris from last year's Japanese earthquake and tsunami. But the Kodiak Daily Mirror reports that they are from a shipping container that went overboard almost four months ago.

Team Sports America received word that the container ship carrying its products from China lost several shipping containers after a rogue wave hit the vessel in a storm. A cable on the ship broke and a whole row of containers got loose in the Pacific Ocean.

It is likely the containers were on the Cosco Yokohama, a container vessel traveling from Asia to Prince Rupert, British Columbia.