New episode 12 trailers

The BBC has started running two new trailers for episode 12 of the current series, separate from the "Next Time" trailer seen last night. There is a 10-second teaser trail featuring the Daleks, and a longer 30-second trail containing many elements from the episode, including a malevolent voiceover.

UK internet users can view both of the trailers on the official BBC website, or on the BBC YouTube channel.