A motorist opened fire in a chic Paris neighborhood Friday night, but no injuries were reported, police said. The man, at the wheel of a Renault Twingo, fired about 20 rounds from the car window at storefronts and bus stops in the upscale 16th district of the French capital, police said. He then abandoned the car at the scene and fled on foot, police said. It was not immediately clear if he had been aiming at someone. Several dozen officers were searching for the man around the Place du Trocadero, just across the Seine River from the Eiffel Tower. Police considered him armed and dangerous.