Aug. 9 (Bloomberg) -- Russia’s navy and Federal Security Service, the primary successor to the Soviet-era KGB, are searching for a Finnish ship with a Russian crew that disappeared in the Atlantic Ocean en route to Algeria.

Radio contact with the freighter Arctic Sea was lost on July 28, according to a statement posted on the navy’s Web site today. The ship, which sails under the Maltese flag, had 13 to 15 crewmembers on board, the navy said.

The Arctic Sea, operated by Oy Solchart Management AB, was scheduled to arrive in Bejaia, Algeria on Aug. 4, the Sovfracht maritime news Web site reported yesterday. The ship, built in 1991, has 4,706 deadweight tons capacity, the navy said.

The Arctic Sea was attacked in Swedish territorial waters on July 24. The crew was tied up and assaulted while masked pirates searched the cargo vessel. It was boarded between the Swedish islands of Oeland and Gotland in the Baltic Sea by the group who identified themselves as police officers, Swedish police said in a statement on July 31.

Stora Enso Oyj, Europe’s largest papermaker, had a lumber cargo valued at 1.3 million euros ($1.8 million) on the ship, Helsingin Sanomat reported today. The vessel was carrying sawn wood products from the Finnish company, the newspaper said.

To contact the reporter on this story: Paul Abelsky in St. Petersburg at pabelsky@bloomberg.net.

Last Updated: August 9, 2009 11:44 EDT