Public Health England has warned this week's heatwave in the South East could have a "significant effect on health".
The Met Office has declared a level 2 heat-health alert. It's activated when there is at least a 60% chance of temperatures being high enough on at least two consecutive days and into the night to have a impact on health.
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The entertainer was held for the murder of Stuart Lubbock, who was found dead in his swimming pool in 2001, but never charged.
Although the diamond was believed to be cut in the 19th Century, its history and how it arrived at the car boot sale is unknown.
The former entertainer, who was released from prison on Friday, is accused of indecently assaulting three women in the 70s and 80s.