'Killing Eve' has been renewed for a fourth season.

Sandra Oh and Jodie Comer

Sandra Oh and Jodie Comer

Phoebe Waller-Bridge's hugely popular spy thriller - which stars Sandra Oh and Jodie Comer as M15 agent Eve Polastri and assassin Villanelle respectively - has been picked up for season four by BBC America, before season three has even aired.

Sarah Barnett, President, AMC Networks Entertainment Group and AMC Studios, said: "How could we not have massive confidence in 'Killing Eve'? It has won big in every major award show and is the highest growing show on U.S. television for six years.

"The reason for this series' emphatic embrace is the brilliant women who breathed it into being: Phoebe Waller-Bridge, Emerald Fennell, Sandra Oh, Jodie Comer, Fiona Shaw and it's fairy godmother, executive producer Sally Woodward Gentle.

"Season 3 lead writer Suzanne Heathcote takes Eve, Villanelle and Carolyn to places more thrilling, twisted and surprising than ever. Our addicted fans will not be disappointed."

Woodward Gentle added:" I am beyond thrilled that we can continue our extraordinary journey. It is a testament to everyone involved that we have been picked up so early -- the magnificent actors, writers, directors and production team. We are extremely lucky to work with such fierce and dedicated people."

The show will have a new head writer for season four but they have not yet been announced.

Phoebe Waller-Bridge took charge for the first season before Emerald Fennell took over in the second season, while Suzanne Heathcote was head writer for season three.

'Killing Eve' is produced by Sid Gentle Films Ltd. for BBC America and is financed and distributed by Endeavor Content. The series is based on the 'Codename Villanelle' novellas by Luke Jennings.