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
A damp and cold night ahead. Valentine's Day will start cloudy but become brighter in the afternoon. Risk of showers along the Kent coast.
Cold and damp tonight with outbreaks of rain. A cold and dull start to Valentine's Day but becoming drier and brighter by the afternoon.
Rain turning more patchy this afternoon but more persistent along the coast. Feeling cold in the brisk north-easterly wind.