this is bbc news. i'm james reynolds. the headlines at eight o'clock — all 12— to 15—year—olds in the uk are set to be offered a dose of the pfizer coronavirus vaccine. the uk's chief medical officers hope the move will keep more children in school, cutting the risk to their mental health. it is an important, potentially useful additional tool to help reduce the public health impacts that come through educational disruption. the government is expected to give a statement to the house of commons this evening on vaccinations for 12— to 15—year—olds. also on the programme — nearly a third of all those arriving in england and northern ireland in the spring may have broken quarantine rules. climate protestors cause chaos on the m25, blocking slip roads, the nhs starts trials of a