Doctor Who star Matt Smith: 'The Daleks are back'

Doctor Who star Matt Smith, has said the Doctor's arch enemy, the Daleks, return in the new series of the show - and they are ''as scary and malevolent as they should be''.

He was speaking to the BBC's Lizo Mzimba at the launch of the seventh series of the revamped programme, which writer Steven Moffat has described as being the most ambitious production yet.