The historical sex offence claim made against Sir Cliff Richard allegedly took place in 1985 at Sheffield United's Bramall Lane stadium in South Yorkshire, ITV News understands.
The alleged incident is believed to have occurred at the time of a rally headlined by Billy Graham - an American Christian evangelist.
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The meal was held in the Picture Gallery at Buckingham Palace.
With temperatures peaking at 29C today, it is the hottest April day for nearly 70 years.
Russian trolls are behind a disinformation campaign about chemical weapons attacks in Syria and Salisbury, a government source has said.