The news was revealed as part of a new series of drama commissions from the broadcaster, including a spin-off of hit legal drama The Split and an original romantic comedy starring Sex Education star Aimee Lou Wood.
Both seasons three and four of Blue Lights will consist of six episodes each and will feature the same creative team as the previous two, led by Declan Lawn and Adam Patterson.
Speaking of the announcement, they said: "We’re thrilled that the BBC is committing to Blue Lights in this way. From the beginning, we wanted to write a show that had scale and ambition in its storytelling, and this decision gives us everything we need to do that.
Co-creators and executive producers Stephen Wright (Two Cities Television) and Louise Gallagher (Gallagher Films) added: “A two-series recommission is a staggering vote of confidence in Blue Lights – the writers, the cast, the crew and the entire production team.
"The BBC have been exceptional partners who have helped us elevate the show. A big thank you from everyone in the Blue Lights team for the faith and support given to our show; we are working with the best people.
"There are so many more stories to tell and we can’t wait to get going again with the Blue Lights squad in Belfast.”
Lindsay Salt, BBC Director of Drama, added: “We were bowled over by the reaction to Blue Lights and I’m really pleased to be confirming our commitment to bring two more series of our beloved Belfast drama to air. "Adam and Declan have brilliant ideas about where to take the characters next and I can’t wait for viewers to see what’s in store.”
Season 1 became one of the top 10 dramas for the broadcaster when it launched in 2023. The upcoming second instalment will see Siân Brooke and Martin McCann reprise the roles of rookie Grace Ellis and her partner, experienced police officer Stevie Neil.
Katherine Devlin and Nathan Braniff also return as Grace's new colleagues Annie Conlon and Tommy Foster, as do Joanne Crawford and Andi Osho as Sergeant Helen McNally and Sergeant Sandra Cliff respectively.
There are a few new faces, including Frank Blake as new agent Shane Bradley and Seamus O'Hara and Seána Kerslake as Lee Thompson and his sister Mags.
Blue Lights season two will premiere in spring 2024.
