Netflix has revealed the second series of its hit show Stranger Things will be released on Halloween.

The air date was confirmed in a trailer shown during television coverage of the Super Bowl in the US.

Nine new episodes of the award-winning programme will debut on the streaming service.

Starring Winona Ryder and Matthew Modine, the first eight instalments follow the search for a young boy who vanishes in the fictional town of Hawkins, Indiana in 1983.

The investigation into his disappearance unravels a series of mysteries involving secret government experiments, supernatural forces and a strange little girl, played by 12-year-old British actress Millie Bobby Brown.

The trailer for the second series continues the show's 80s theme, with some of the young characters dressed in Ghostbusters outfits, and provides a glimpse of Brown's character Eleven and a huge monster lurking in the sky.

The cast of Stranger Things recently won the Screen Actors Guild Award for best ensemble in a drama series.

Brown was also nominated for best actress in a television drama series at the ceremony.