General election news – live: Boris Johnson 'did not contact' family of London Bridge terror victim, as PM faces fresh accusations on NHS crisis

Boris Johnson has faced new questions about the state of the NHS after The Independent revealed a 12-year-old with learning disabilities and mental health issues had to stay in an Essex hospital A&E for 57 hours for a specialist bed to become available.

Mr Johnson remained under fire for his apparent lack of empathy for a four-year-old boy who slept on a hospital floor.

It came as the father of London Bridge attack victim Jack Merritt accused Mr Johnson of using his son’s death as “an opportunity” and said there was “no attempt” to contact the family from Downing Street, despite the insistence of a Number 10 spokesperson to the contrary.

Labour have accused the Conservatives of lying about an alleged assault on health secretary Matt Hancock’s aide in a bid to distract attention from the NHS crisis, while Jeremy Corbyn denied his party was using the case of the four-year-old boy as a “political football”.

Trade experts also uncovered fresh evidence that Boris Johnson is misleading voters about the impact of his Brexit deal on Northern Ireland – leading them to warn it is unlawful. The UK Trade Policy Observatory found tariffs would be charged on around 75 per cent of imports, including those from Britain, under the PM's plan for a customs border in the Irish Sea​