The Russian Akademik Shokalskiy ship, which has been trapped in frozen seas since Christmas Eve, is now beginning to travel at a slow speed after a crack appeared in the ice, Igor Kiselyov told the ITAR-TASS news agency.
"Finally the wind changed to the west and as a result a crack appeared in the ice. We went into it and we are now slowly moving north," he said.
"We are going at a slow speed and by changing course, we have moved forward already more than 20 miles," he added.
Nevertheless, the going was better than before, he said, with the ship moving through smaller chunks of ice.
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A crew of 22 remained on the Akademik Shokalskiy after the 52 passengers including tourists, journalists and scientists were airlifted to safety last Thursday.
Chinese icebreaker, the Xue Long, which was sent to rescue passengers from the Akademik Shokalskiy only to become trapped in the ice itself, managed to break free from the ice today and sail into open waters, Chinese state media reported.
The Shokalskiy became trapped on December 24 in frozen seas 100 nautical miles east of the French Antarctic base, Dumont d'Urville.