Hundreds of well wishers turned out to meet the Queen as she officially opened new hospitals in Manchester.
Accompanied by the Duke of Edinburgh, she opened Royal Manchester Children's Hospital, Manchester Royal Eye Hospital, Saint Mary's Hospital and a new wing at Manchester Royal Infirmary.
More top news
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."