G4S: 'We were unaware of these allegations until Panorama sent them'
Seven staff members at a young offenders institution in Kent have been suspended over abuse allegations.
The staff were working at the Medway Secure Training Centre in Rochester, managed by security firm G4S.
Paul Cook of G4S spoke to the Victoria Derbyshire programme.
Watch Victoria Derbyshire weekdays from 09:15-11:00 BST on BBC Two and the BBC News Channel. Follow the programme on Facebook, external and Twitter, external, and find all our content online.