A man who stabbed his girlfriend to death before jumping out of a window and attacking passers-by has been jailed for a minimum of 21 years.

Michael Marler, 37, was sentenced to life on Friday for the murder of Danielle Richardson, 24, following a trial at Manchester Crown Court, Greater Manchester Police said.

Marler, of Brideoak Street, Oldham, had admitted stabbing Miss Richardson in the face, neck and back in an apartment in Manchester city centre after a "drugs spree" but denied that he intended to kill her.

The couple had been out to watch a film on the evening of February 12 before returning to the apartment in Ancoats, where they both smoked cannabis and used a crack pipe to take cocaine, the court heard.

The following morning, at about 7.30am, CCTV footage showed Marler landing on a car parked outside the flat after jumping 25ft (7.6m) from a second-storey window.