Martin Compston has dropped a huge hint a new season of ‘Line of Duty’ could be in the works.

Martin Compston has hinted a new Line of Duty is on the way after a WhatsApp group change

Martin Compston has hinted a new Line of Duty is on the way after a WhatsApp group change

The 39-year-old actor - who plays Detective Inspector Steve Arnott in the BBC One police drama - admitted the show’s creator Jed Mercurio, 57, had added a load of the cast to a new group chat, and the group name was changed to "Line of Duty 7", hinting a seventh season could be coming soon.

He said on the latest episode of his podcast ‘Restless Natives’: “We have got a WhatsApp group that was 'Line of Duty 6' and a while ago Jed changed the name of it to 'Line of Duty 7'.

“What I love about it is we have never spoken about it since. We have had such a good run with it, and a bit of you does go, 'Let's walk away on a high,' but we all want to work together again because we are so close."

But Martin confessed a new season wouldn’t happen “for the sake of it”.

He said: “We wouldn't do it just for the sake of it. It would have to add to the series, it would have to make the series better.”

Martin stars opposite Adrian Dunbar, 65, and Vicky McClure, 40, who play Ted Hastings and Kate Fleming respectively, in the series.

In June, the star admitted he is so "proud” to be one of the main stars in Jed's BBC police drama and will have no hesitation in reprising his role for a seventh series.

He told the ‘Celtic View’ podcast: “I’ve got lovely management in America who tell me every year, ‘This has to be your last one’. But I’m really proud of the show, and if that’s the best that I’ll ever do, then so be it.”