Fire advice is to flee as tests show Grenfell-style cladding unsafe

Residents living in more than 100 tower blocks in London are being advised to flee in the event of a fire amid concerns that their buildings are structurally unsafe, the Observer has learned.The dramatic switch recognises that many tower blocks in the capital are considered unsafe after new tests on their cladding showed them to be in breach of building regulations.A spokeswoman for the London fire brigade confirmed that, following work to inspect the safety of their cladding systems, the owners