Two London locations have been searched by counter-terror police over suspected offences linked to Iran.
The searches were conducted at residential addresses in the north west of the capital on Wednesday.
The Metropolitan Police said the investigation was not linked to the Golders Green arson attacks, nor to other recent incidents in which the Jewish community has been targeted.
No arrests have been made at this stage and enquiries are ongoing.
Commander Helen Flanagan, Head of Counter Terrorism Policing London, said: “We’ve seen a marked increase in the tempo of our work linked to national security and state threats over the past year and this investigation is a continuation of that, as part of broader disruption of hostile activity.
"We know this may come as a concern to some, but I want to stress that we do not believe there to be any imminent threat to the public, nor to any particular communities, individuals or venues in connection with this matter. Of course, our investigation will continue and we will not hesitate to take further action if required.
“I would also like to remind the public that the overall terrorism threat level is at severe, so we continue to ask for everyone’s support through being vigilant, and if you see or hear anything that doesn’t look right, then please, trust your instincts, and report it to us.”
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