There is understood to be a 100m cordon in place around Grand Arcade in Cambridge following reports of a suspicious package.
Bomb disposal teams have been dispatched, police are expected to be in the area for several hours.
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Norwich City and Middlesbrough go head-to-head this evening at Carrow Road in a pivotal clash in The Championship promotion race.
Ipswich is a seat that has swung between the Conservatives and Labour for much of the last century.
A dry weekend's expected everywhere with plenty of sunshine, especially on Saturday.