2 hours, 31 minutes ago LONDON (AFP) - Buckingham Palace remained typically tight-lipped Thursday after satirical US cartoon series 'South Park' aired an episode portraying Queen Elizabeth II killing herself after learning that a British plot to reconquer the United States had failed. Barely a month after British actress Helen Mirren won the Best Actress Oscar for her sympathetic portrayal of the queen in the film of the same name, the queen received less than regal treatment in the popular cartoon series. The 'South Park' episode aired on US television late Wednesday. In one scene, the queen is portrayed putting a gun in her mouth and pulling the trigger after receiving a call informing her that her plan to take over the United States had failed. The queen then falls from her throne and lies on the palace floor in a pool of blood. The notoriously offensive show follows the adventures of four boys from Colorado and this particular episode also features US presidential candidate Hillary Clinton, in town for a big campaign rally, in an event overshadowed by a terrorist threat. A Buckingham Palace spokeswoman Thursday declined to comment on the portrayal, saying the Palace "does not comment on artistic interpretations" People are seriously SURPRISED by this? Even the Palace has nothing to say about it!