Five people have been arrested in Britain on suspicion of terrorism offences as part of an investigation launched after the recent attacks in Paris and Brussels, West Midlands Police said Friday, according to the BBC.
Three men, aged 26, 40 and 59, and a 29-year-old woman, were held in Birmingham on Thursday night.
A fourth man, 26, was arrested at Gatwick Airport in the early hours of Friday. All five are from Birmingham.
Whitehall officials described the arrests as "significant".
Police say they worked with MI5 and Belgian and French authorities in an operation "to address any associated threat to the UK following the attacks in Europe".
They said there was no risk to the public at any time and they had no information to suggest an attack in the UK was being planned.
Police said all those arrested are being held in the West Midlands on suspicion of being concerned in the commission, preparation or instigation of acts of terrorism. Officers are also searching a number of properties in Birmingham, according to the BBC.
Assistant Chief Constable Marcus Beale, who leads on counter-terrorism for the force, said the operation was part of an "extensive investigation", and the arrests were "pre-planned and intelligence-led".
Earlier this week, Belgian prosecutors charged two more men involved in last month's Brussels bombings of participating in the activities of a terrorist group, terrorist murder and attempted terrorist murder as perpetrators, co-perpetrators or accomplices.
The men, identified as 32 year-old Smail F and 27 year-old Ibrahim F, rented out an apartment in the Etterbeek neighborhood of the capital to the terrorists and at least one suspected accomplice.
Prosecutors have already filed charges against four people believed to have been involved in the attacks last month, in which a total of 32 people were killed and 270 wounded.
It has been reported that one of the ringleaders of the Brussels attacks, Mohamed Abrini, visited the UK last year. The BBC said it heard from a source in Interpol that he had visited the country.
(Arutz Sheva’s North American desk is keeping you updated until the start of Shabbat in New York. The time posted automatically on all Arutz Sheva articles, however, is Israeli time.)