Tourists from New Zealand, Spain, France, Germany and the Netherlands are thought to be among those rescued after a boat reportedly hit a reef in bad weather during the three-day journey in Indonesia.
While two Britons were among the survivors, the fate of the other 15 people on board, thought to be of various nationalities and reportedly including four Indonesian crew members and Indonesian guide, is not yet known.
More top news
The mother of missing RAF serviceman Corrie McKeague says she may take out an injunction to stop police filling in a landfill site.
Branden Grace exploited ideal conditions to record the first 62 in men's major championship history in the third round of the Open.
Relatives of those killed in the Hyde Park attack 35 years ago marched in central London to bring an accused bomber to justice.