Line of Duty writer Jed Mercurio has shared a cryptic social media post as rumours of a seventh series continue to circulate.Last night's hotly-anticipated final instalment saw the identity of 'H' finally revealed as Ian Buckells.Fans are hoping last night wasn't the end as the popular programme's future hasn't yet been revealed.Show creator Jed shared a cryptic social media post on Twitter after Sunday's episode.Sharing a picture of the AC-12 sign, he wrote: "Carry the fire", not giving anything away about a potential seventh series.It seems the BBC show's actors Vicky McClure and Martin Compston also hinted that the sixth series could be the last.Vicky tweeted on Sunday: "Please excuse the slightly over emotional post but it's been quite.
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