Scotland Yard said she has been charged with an intent to commit acts of terrorism by "communicating with an ISIS fighter in Syria and arranging to receive weapons in order to conduct an attack in the UK;receiving instructions on how to train and use weapons; andreaching out to another to receive assistance in completing plancontrary to Section 5(1)(a) and (3) Terrorism Act 2006".
The teenager, who cannot be named because of her age, is accused of communicating with an ISIS fighter and arranging to receive weapons to be used in the planned attack.
The girl was previously charged with terror offences in April and is due to appear at the Old Bailey tomorrow in relation to that charge.