The liquid being used to cool a new computer server, developed in Rotherham and being tested in Leeds, is extraordinary stuff, according to scientists. The fluid doesn't conduct electricity which is why components like circuit boards survive being immersed in it. A mobile phone would still work:
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A 23-year-old man has been arrested in connection with the attack at Manchester Arena last night.
Theresa May says police think they know identity of lone bomber as she contrasts "warped" terrorist with courageous emergency services.
Humberside Police have released a statement saying that they are not aware of an imminent threat ahead of Radio One's Big Weekend in Hull.