At least two people are being held by police in the Caribbean after a Briton was killed while defending his wife on a dream holiday.
Police in St Lucia said investigations are continuing after 62-year-old Roger Pratt died when he was attacked on his boat on Friday.
Mr Pratt's wife Margaret, who is the former Chief Executive of St Mary's Hospital on Isle of Wight, is being treated in hospital after the attack.
More top news
Millions of voters headed to the polls to vote in today's local elections. Here is when the results are expected in.
Around 45 million registered voters in England, Wales, Scotland and Northern Ireland will vote in elections across the UK.
One year after the general election, this is Jeremy Corbyn's first big electoral test. Phil Hornby reports.