Here's the press release.
VETTEL AND INFINITI RED BULL RACING EXTEND CONTRACT
Infiniti Red Bull Racing is happy to confirm that World Champion Sebastian Vettel has extended his multi-year contract with the team until the end of 2015.
A previous member of the Red Bull Junior squad, Sebastian first drove for Red Bull Racing in 2009. During his Formula One career, the 25-year-old has achieved 29 wins, 51 podiums and 39 pole positions. He is the current Formula One World Champion and also a triple World Champion, having retained the title since he first won it in 2010.