These are the first pictures believed to be of Abdul Waheed Majeed.
Police are searching the Crawley home of the man suspected to be the first British suicide bomber in Syria.
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."