and extensive travel disruption because of powerful winds and it's just been confirmed that a woman has been killed by a falling tree in london. coming up. a warning that children's health services must be prioritised as we emerge from the pandemic coming up in sportsday on the bbc news channel... sprinter cj ujah has apologised for doping violations that have resulted in team gb�*s men's ax100m team being stripped of the silver medal they won at the olympics in tokyo last year. us diplomats say russia has now amassed up to 190,000 personnel around the borders of ukraine, calling it the most significant military mobilization in europe since the second world war. moscow has repeatedly denied planning to invade ukraine, but there are reports for a second day of shellfire in the east of the country, which is held by russian—backed separatists. world leaders are meeting in munich for a security conference, but russia won't be attending