“We know Line Of Duty fans are desperate for series six and we hope we can get it on air as soon as possible,” Mercurio said.
Mercurio has now posted a photo from the set, while the cast have also posted about returning to work.
McClure, who plays DI Kate Fleming, said: “Been sitting on these incredible scripts for some time now, so I’m really looking forward to getting back to it and seeing the Line Of Duty family.”
Dunbar, who returns as Ted Hastings, added: “Even with the imposition of Covid restrictions I can’t hide my excitement at getting the team back together.