The deaths all happened at a hospital in the UK

A female healthcare worker's been arrested in the UK over the murder of eight babies and the attempted murder of another six.

Cheshire Police set up a team in May last year to look into the neo-natal unit at the Countess of Chester Hospital.

Officers are now investigating the deaths of 17 babies and 15 what they call non-fatal collapses in the 16 months from March 2015.

Sky's Ashish Joshi has a statement from the hospital: