Games trade body Ukie said all its members "take their responsibility to their players, particularly children, very seriously".
Ukie chief executive Jo Twist said:
We welcome any guidance from the OFT [Office of Fair Trading] to clarify how they are interpreting the law and shall be taking our time to digest the proposed guidelines before responding fully to the OFT’s consultation.
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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."