Police in St Lucia say they have arrested two further people in connection with the murder of Roger Pratt, a British tourist who was travelling around the world with his wife.
Five people remain in custody and are assisting police with their inquiries.
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Top temperatures only reaching 7 Celsius (45 F).
Drone have become a major issue in British prisons, the technology used to smuggle items with an estimated value of up to £1.2 million.
"Africa is very important for the United States."