Residents are part of Peterborough are being told to stay indoors while a controlled explosion takes place on an unstable chemical.
Staff were evacuated from Perkins on Frank Perkins Highway at 1:30am this morning.
A 500metre has been set up around the site and roads are currently closed.
Police say The chemical does not pose a risk to nearby residents, however people are being advised to stay indoors as a precaution.
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A consultation begins today on how Leicester's Golden Mile could look if a proposed revamp is given the go-ahead.
After a dry start with some sunny spells, cloud will thicken to bring some outbreaks of rain across the region from late morning.
After a largely fine morning with some sunshine, cloud and showery rain will gradually spread in from the west from early afternoon.