West London teenager arrested on suspicion of terrorism offences
Items containing an "unknown substance" were found during the raid and have been sent for "urgent analysis".
Thursday 30 August 2018 14:03, UK
Police have arrested a 16-year-old boy on suspicion of terrorism offences following a raid on an address in west London.
He was originally taken into custody on suspicion of possessing an imitation firearm and cultivating cannabis after officers found what was believed to be a weapon and a number of plants at the property.
Further searches revealed items "containing an unknown substance".
Specialists were sent to the scene as a precaution and Metropolitan Police said the items will be sent for "urgent analysis" to determine what they contain.
The teenager has since been further arrested on suspicion of commission, preparation or instigation of acts of terrorism under Section 41 of the Terrorism Act and remains in custody at a south London police station.
Enquiries are ongoing and a cordon remains in place at the property, with Scotland Yard's Counter Terrorism Command leading the investigation.