Pattinson, Stewart 'enjoy second gig date'

Twilight co-stars Robert Pattinson and Kristen Stewart have again fuelled rumours that they are dating after being photographed together at a concert.

Images posted on Radar Online show the pair chatting and sitting next to each other at a Kings of Leon gig in Vancouver on Saturday night.

According to the Los Angeles Times, the rumoured couple were seen "having a great time together, smoking and drinking", while some sources have alleged that they were caught kissing.

The duo arrived in Canada earlier this month to begin work on Eclipse, the third instalment in the vampire franchise. They were joined at the concert by co-stars including Kellan Lutz and Bryce Dallas Howard.

Pattinson and Stewart, who were spotted attending a gig together in Los Angeles earlier this month, have previously denied reports that they are dating.