'Game of Thrones' will return for at least another two seasons following season four.
The hit fantasy drama, which achieved record ratings for its fourth season premiere in the US on Sunday April 7, will return for a fifth and sixth season, HBO has confirmed.
HBO's programming president Michael Lombardo said: "'Game of Thrones' is a phenomenon like no other. [Producers] David Benioff and D.B. Weiss, along with their talented collaborators, continue to surpass themselves, and we look forward to more of their dazzling storytelling."
The fourth season kicked off with a huge 6.6 million viewers on Sunday, marking HBO's most watched drama since 'The Sopranos' finale in 2007.
The first episode was also a hit in the UK, drawing more than a million viewers across two airings on Sky Atlantic on Monday (08.04.14).
The premiere garnered 537,000 viewers for a simulcast with the US broadcast at 2am.
Some 675,000 fans tuned in later for a primetime screening of the episode at 9pm.
The show's producers have previously hinted 'Game of Thrones' will last seven seasons, matching the number of books published in the series on which it is based.
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