A 14-year-old boy has been arrested in London over a terrorism offence.
Police have said the investigation, led by the Met's counter terrorism command, is related to extreme right-wing terrorist material.
The teenager was arrested on Wednesday at a west London address on suspicion of possessing information of a kind likely to be useful to a person committing or preparing an act of terrorism.
He was later released on bail until August pending further inquiries.
Officers also carried out a search at an address in west London and inquiries remain ongoing.
"This arrest is indicative of a continuing and concerning trend of young people being drawn into and involved in terrorist-related activity," Dominic Murphy, head of the Met's counter terrorism command, said.
He added that around a fifth of those arrested for terrorism offences last year were aged under 18.
Commander Murphy continued: "That is why it is so important for parents, friends and family to be looking out for any warning signs that a child might be getting drawn into extremism or terrorism and to ACT Early, by contacting us for advice and support before it is too late."