Under the Dome fans mourn the show's demise

Dean Norris from cancelled TV show Under the Dome.

The TV adaptation of author Stephen King's thriller Under The Dome has been cancelled.

Just two years after record-breaking ratings, viewer numbers have dipped and executives at America's CBS network have announced that the third season will be its last.

To the fans of Under The Dome. You have been fantastic!!! Thank you. See you all soon @UnderTheDomeCBS

— Dean Norris (@deanjnorris) September 1, 2015

The series debuted in June, 2013 with over 13 million viewers, making it the most-watched summer drama opener on any network since 1992.

The program will now conclude with a series finale on September 10.

The TV series, produced by Steven Spielberg's Amblin Entertainment, is based on King's 2009 novel about a New England town suddenly enclosed by a giant dome.

Mixed reaction on Twitter

I'm kind of glad. The show used to be really good but is quickly going downhill. I'd rather have it go out now. #UnderTheDome

— 👻 hannah 🎃 (@hannahdevyor) September 1, 2015

@colinfordactor I will miss #UndertheDome so much! Such a great show and I'm sad to see it go😭The entire cast was phenomenal <3

— Priscilla 🖤 (@_priscillah_12) September 1, 2015

So they finally cancelled Under The Dome. Lasted longer than expected

— Shawna™ (@ShawnaWTF) September 1, 2015

They cancelled Under The Dome. FML. I'm quitting today. Do not want.

— AlmightyAce (@AlmightyAcey) September 1, 2015

- WENN