"Safety is our top priority and the cause of this incident is being investigated. We apologise to customers for the inconvenience caused by the power cut and our staff restored all supplies as quickly and safely as possible."
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Face coverings will be compulsory on public transport from June 15, Transport Secretary Grant Shapps has said.
The child’s mother, who is in her late twenties, along with two men in their late teens, were also taken to hospital.
Naftali Arden, from Borehamwood, was gifted a foosball table from the Hollywood star, just like the one in Joey and Chandler's apartment.