Scotland Yard says officers from the Met’s Counter Terrorism Command have arrested a 36-year-old man from Ealing under Terrorism Act
The man was arrested on suspicion of disseminating terrorist publications, and was arrested in Ealing at around 6:50am
He is currently in custody at a south London police station.
Detectives are executing search warrants at two addresses in Ealing and Hillingdon.
Enquiries are ongoing.
The arrest has been made under PACE.