Line of Duty fans will be delighted to learn the BBC has commissioned two more series of the hugely popular drama about a web of police corruption

BBC director-general Tony Hall has announced there will be a fifth AND sixth series of hit police corruption thriller series Line of Duty.

Lord Hall said at a press launch: “I am very excited to say there’s not one but two more series of Line of Duty. So hooray for AC-12!”

Line of Duty creator Jed Mercurio had earlier been unsure whether it would go beyond a fifth series, expected to screen in the first half of 2019.

He told Radio Times: “If, by the time we get to the development of series five, there are no further series commissioned, then we have to approach series five as if it’s the last. If we know we have got a sixth series then we are able to look ahead.

“I have got an idea of how things will conclude or, more accurately, the kind of story we need to get into for that to be dramatised. Whereas if I know series five is not the last series then I have other ideas that are more standalone in terms of what the story is.”

He added: “I certainly would make six. Whether I would go beyond six would depend on how series five went.”

Line of Duty series four concluded to universal praise from fans and critics as it revealed there was more than one Balaclava Man responsible for the abduction and murders of young women, while DCI Roz Huntley was sentenced to 10 years in prison for the killing of forensic expert Tim Ifield.