Police say two people who were found dead in a swimming pool at a luxury hotel in Essex died from drowning.
Detectives have still not named the man in his 30s and woman in her 20s who were discovered on Saturday at the Down Hall Country House Hotel in Hatfield Heath.
Matthew Hudson has more.
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The 47-year-old man died shortly after 3pm on Tuesday.
Specialist explosive detection dogs searched through the town examining letter boxes and phone booths for signs of potential devices.
Temperatures reached 29.1C in St James's Park, central London.