AMC has unveiled a new official poster for The Walking Dead's third season.

Andrew Lincoln appears in the artwork as Rick Grimes, pointing a gun while standing on top of an overturned bus.

The prison which was discovered at the end of the second season looms large in the background.

The Walking Dead will return for its third season on Sunday, October 14 at 9pm ET/PT on AMC in the US.

The third run will consist of 16 episodes in two parts. The second batch of eight episodes will air in February 2013.

Director Guy Ferland recently said that the new episodes will feel more like the first season.

Showrunner Glen Mazzara has also stated that the third season will be "relentless".

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