Police in Manchester arrested three men Wednesday in connection with terrorism offenses.

The arrests were carried out by the Greater Manchester Police's recently created counterterrorism unit in the Longsight area of the city, the force said in a statement. A fourth man was arrested under immigration legislation.

Police said the arrests were made after they received a tip from the public about "alleged terrorist activity and of the existence of a potential threat."

There were no links with the recent investigation into botched car bomb attempts in London and Glasgow, police said.