The deadly collision that unfolded outside a mosque in London early Monday has been declared a terrorist attack by British officials . “We don’t yet know the full details, but this was clearly a deliberate attack on innocent Londoners, many of whom were finishing prayers during the holy month of Ramadan,” London mayor Sadiq Khan wrote in a statement. “While this appears to be an attack on a particular community, like the terrible attacks in Manchester, Westminster and London Bridge, it is also an assault on all our shared values of tolerance, freedom and respect,” he said.