Rescue helicopter \"Rescue 997\" is seen onboard the three years old oil tanker M/T Concorde. The unit was called to the site, along with an anaesthetist nurse from Visby Hospital, to take care of a sick sailor. Flying out of Visby, on the island of Gotland, the helicopter is owned and operated by Norrlandsflyg according to a contract with the Swedish Maritime Administration. It\'s one of five rescue helicopters in Sweden, of which four are civil and one is a military aircraft.