BELGRADE, Feb 1: Serbia’s prime minister, who was flashed by a model without underwear masquerading as a television interviewer, has launched an investigation into how he became the target of the prank, an aide said on Thursday. The video of Ivica Dacic being interviewed by a brunette former model from Croatian Playboy, who uncrosses her legs in a scene reminiscent of actress Sharon Stone in the film “Basic Instinct”, has been viewed 2.7 million times on YouTube. (agencies)