Filming on the new series of the hit BBC drama Line of Duty has commenced, with its stars Adrian Dunbar and Martin Compston being pictured on set.

The sixth run of the gripping police procedural from writer/creator Jed Mercurio is due to air later this year.

The BBC press office tweeted two photos of Dunbar and Compston filming along with the message: "Mother. Of. God. First look images released as filming begins on series six of #LineOfDuty."

The upcoming series is set a year and a half on from the events of series five and will feature a brand new case for AC-12, focused on an enigmatic detective chief inspector who will be played by Kelly Macdonald.

The Scottish star, well known for her roles in Trainspotting and Boardwalk Empire, was revealed to be playing the senior investigating officer of an unsolved murder whose unconventional conduct raises suspicions at AC-12, last November.

Series leads Dunbar, Compston and Vicky McClure will all return, while other newcomers will include Shalom Brune-Franklin, Perry Fitzpatrick, Andi Osho and Prasanna Puwanarajah.

The fifth series of the popular thriller aired last year, with Stephen Graham in the guest lead role as Detective Sergeant John Corbett.

The new series of Line Of Duty will premiere on BBC One later this year.

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