Former Radio 1 presenter Mike Smith has died at the age of 59.
Watch these videos to see how Smith and his fellow Radio 1 presenters celebrated the station's 20th birthday in 1987.
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EnQuest said the evacuation was taking place as a precautionary measure.
Opioid use has been linked to the deaths of more than 400,000 people over the past two decades in America.
The 21-year-old man was arrested on Monday night on suspicion of two counts of murder after the incident in Milton Keynes.