Line Of Duty proved a ratings hit on Sunday nights, but the next series is some way off.
Over 7 million are expected to have tuned in to Sunday night's series finale and there's bad news for those eager to find out the air date for the next series of Line Of Duty.
Show creator Jed Mercurio says that Series 5 of Line Of Duty may not air until 2019.
“The plan is we won’t shoot Line of Duty series five until next year and that means it won’t be on air until 2019," he revealed this weekend. "I am not planning to write it until next year because I am working on [something else]."
Jed told the Daily Mirror newspaper: “We haven’t even decided if the next antagonist will be male or female, we are that far off from puzzling it out.
“I have got various ideas but what is crucial is whether we are approaching series five as being the last series, and that depends if we can persuade the BBC to commission a series six.”
The BBC previously confirmed a fifth series after moving the show to BBC One for Series 4.
Charlotte Moore, BBC Controller of TV Channels and iPlayer, said at the time: "Line of Duty is original, bold, gripping drama that gets the nation talking and the time is right to bring the series to an even broader audience on BBC One.
"Jed Mecurio's explosive thriller will find a new home on BBC One for two more series and create room for new drama to flourish on BBC Two. Thanks to Jed, Simon Heath's World Productions, and Stephen Wright at the BBC for producing the record-breaking show."