All passengers and crew, including the captain of M/S Explorer, are completely safe, uninjured and in good spirits. The passengers spent the night at King George Island in Antarctica. There are plans for passengers to board flights today and tomorrow to Punta Arenas, Chile. Accommodations have been arranged in Punta Arenas and flights home from there are currently being scheduled.
The passengers include 2 Argentines, 10 Australians, 2 Belgians, 24 British nationals, 12 Canadians, 1 Chinese national, 3 Danes, 17 Dutch, 1 French, 1 German, 2 from Hong Kong, 4 Irish, 1 Japanese, 4 Swiss, 14 Americans, 1 Colombian and 1 Swede. The captain of the ship is Swedish and the majority of the crew are understood to be from the Philippines. The crew onboard M/S Explorer consist of 45 Filipinos, 4 Swedes, 2 Bulgarians, 2 New Zealanders, and 1 Pole.
We can now confirm that at 19:00 GMT, Friday, 23 November, M/S Explorer sank. - Source: Wikipedia
Thankfully all ships these days have enough life boats for everybody.