The Scorpio 45 has three cameras as well as cable-cutting equipment.

Vladimir Pepelyaev, deputy chief of staff of Russia's navy, has said there is enough air in the submarine to last through 2 p.m. Monday (9 p.m. Sunday ET).

Officials at Russian Naval Headquarters said they have contacted the submarine crew, and they are in satisfactory condition.

Four U.S. Navy divers were aiding the British team. However, the rest of the Americans were at a Russian harbor 45 miles (75 kilometers) away, trying to get their equipment loaded onto a Russian ship.