The 46-year-old man and the 14-year-old boy took part in a training exercise off the Pulau Tokong Sanggol, nine miles from the coastal town of Mersing. A 35-year-old woman from Norway and an 18-year-old French woman also disappeared. The Malaysian Maritime Enforcement Service launched a search and rescue operation on Wednesday afternoon, but was suspended that afternoon due to poor visibility. It started again on Thursday morning. The UK’s Office of Foreign Affairs, Commonwealth and Development is in contact with the British’s resort and has offered consular assistance. She has not yet received a request for help, but is ready to support the family of the missing Britons. Malaysia’s borders were closed for more than two years during the pandemic and reopened only earlier this month. More than 55,000 tourists entered Malaysia in the first four days after the border was opened, officials said.