A long-awaited rescue of passengers on board a research ship that has been trapped in Antarctic ice for more than a week finally got underway on Thursday, with a helicopter scooping up the first group of passengers and flying them to a nearby vessel, expedition leaders said, according to AP. The helicopter was originally going to airlift the passengers to a Chinese icebreaker, the Snow Dragon, with a barge then ferrying them to an Australian vessel. But sea ice was preventing a barge from reaching the Snow Dragon, and the Australian Maritime Safety Authority's Rescue Coordination Centre, which is overseeing the rescue, said the operation would consequently be delayed. A last-minute change in plans allowed the rescue to go ahead. The 52 scientists and tourists on board were instead being flown to an ice floe next to the Australian icebreaker the Aurora Australis, and then taken by a small boat to the Australian ship, expedition leader Chris Turney said. The maritime authority confirmed the first group arrived at the Aurora Thursday evening. The helicopter will carry the passengers a dozen at a time in an operation expected to take five hours. All 22 crew members are planning to stay with their icebound vessel, which is not in danger. The Aurora will carry the passengers to the Australian island state of Tasmania, arriving by mid-January.