The BBC has teased a couple of photos from the set of their hit thriller show 'Line of Duty', showing that filming of a sixth season is already underway.

The BBC's runaway success shows no sign of pulling the plug just yet, as filming of the sixth season of 'Line of Duty' is already underway in Belfast. Set a year and a half on from the events of when we last saw them, we'll rejoin Adrian Dunbar, Vicky McClure and Martin Compston as they get to grips with a new Detective Chief Inspector, played by Kelly MacDonald.

The senior investigating officer has an unsolved murder case for AC-12 to crack this time around. Joining the Scottish actress in the new season will be Prasanna Puwanarajah ('Doctor Foster'), Perry Fitzpatrick ('This Is England'), Shalom Brune-Franklin ('Our Girl'), and Andi Osho ('Curfew').

Tweeting out a teaser during filming on set, the BBC Press Office tweeted: "Mother. Of. God. First look images released as filming begins on series six of #LineOfDuty".

There's been no concrete date set yet on when exactly we can expect the sixth season to return to our screens. Dunbar however, recently spoke to Today FM, where he said we can expect the series to return at some point this year, most likely in the late autumn.

During the BBC's New for 2020 trailer, we caught a brief glimpse of 'Line of Duty' and its return in the line-up.