this is bbc news. these are the latest headlines in the uk and around the world... the parents of a us teenager accused of killing four students, have been arrested after going on the run. south african scientists say the new coronavirus variant omicron appears to be spreading more than twice as fast as the delta variant. unvaccinated british mums who were severely ill with coronavirus, encourage pregnant women to get their covid jab in the uk. president biden says he does not accept moscow's demands over ukraine, as russian troops mass on the border. britain is witnessing a record spike in anti—semitism — we have a special report on what's behind the rise in attacks on the jewish community.