Staffordshire Police officers say they are trying to help a community return to normal after five houses were raided as part of an inquiry into a gang suspected of promoting extremist views and radicalising vulnerable people.
Neighbourhood officers will be out and about to "provide support and engage with local residents" to "maintain normal everyday life".
The properties were all in Stoke-on-Trent, including three in Cobridge, one in the High Lane area of Burslem and one in Tunstall, according to the police.
Ten officers raided each of the houses, recovering a "significant amount" of property, including literature, documents and computers. Four vehicles have also been seized.
A spokesman said the raids were part of an "ongoing investigation into the activities of a small group of people suspected of being involved in promoting violent extremist views and radicalising vulnerable community members".
He added: "They are being conducted under the Terrorism Act and have been prompted by concerns about the activities of a small number of people in the local community."
No-one has been arrested so far, he said.
The operation posed no direct risk to public safety, a police statement said.
Chief Supt Jane Sawyers, divisional commander for Stoke-on-Trent, said: "I am extremely proud of the strong community relations we have in the city and would ask for the public's continued support and vigilance. "We can only tackle the real and serious threat posed to us all by violent extremism if we all work together."
Ms Sawyers said neighbourhood police officers were providing support and information to concerned residents.