Large parts of Trafford Park in Manchester have been cordoned off by police after a chemical leak at an industrial estate this evening.
Police have urged residents in the area to stay indoors and to keep windows closed.
Manchester Fire and Rescue services described it as a "major" incident but emergency crews said no one is thought to have been injured.
More top news
The report also said that many graduates do not even see a 'earnings premium' from their years at university.
The country's counter-terrorism forces have regained control of the facility.
The commissioner of the Metropolitan Police has said he cannot promise the public an attack will not take place.