Acclaimed Sarah Lancashire crime drama Happy Valley is returning for a second series.

Written by Sally Wainwright, the six-part show ended in June with a gripping finale having drawn an average weekly consolidated audience of nearly 8 million viewers per episode.

Lancashire played police sergeant Catherine Cawood who investigates former prisoner Tommy Lee Royce (James Norton), whom she believes is responsible for the death of her daughter.

The new series will go into production in 2015, to be broadcast later in the year, with Wainwright outlining some of her ideas in this exclusive RadioTimes.com interview.

BBC1 controller Charlotte Moore, who ordered the new series in conjunction with BBC drama boss Ben Stephenson, said: “Sally Wainwright's sensational series gripped the nation. Visceral, emotional and provocative from beginning to end, it’s been fantastic to see our audience on tenterhooks, begging for more."