How are children from Ukraine settling in the UK?

Newsround has been following children from Ukraine who have left to escape the war and settle in the UK.

Jenny met 15-year-old Polina, her mum and little sister, just after they had fled the war and crossed the border into Poland.

They've now come to live in the UK, with a host family who they'd never met before.

Jenny has been following Polina's journey and caught up with her as she started high school.