West Midlands Ambulance Service are warning people to avoid swimming in lakes, rivers and other open water.
It comes after 17-year-old Russell O'Neill died at a quarry near the Malvern Hills in Worcestershire at the weekend.
The Ambulance Service is urging people not to risk their lives.
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Its the UK's biggest ever gang injunction for members of the Burger Bar Boys and Johnson Crew in Birmingham.
The shops owners say they feel "disheartened" after it was broken into for the second time in four years.
Several people, who the police believe to be victims, were found at a house in Derby.