Medical vehicles have been seen at the home of Nelson Mandela. It is not clear at this stage whether the former South African President was inside the vehicle that drove inside the grounds of the Johannesburg home.
Mandela had been in hospital since June 8 for the treatment of a recurring lung infection.
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Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.
Windy this weekend with gales across northwestern parts of the UK. Rain spreading southeast.
Greater Manchester Police said "inquiries are ongoing to fully understand the circumstances of the incident."