A pedestrian was struck and killed by a hit-and-run driver in the Midway District Wednesday night, San Diego police said. The 40-year-old woman was walking in a crosswalk on Camino Del Rio West at Kurtz Street about 9:30 p.m. when she was hit by a northbound vehicle, police said. The driver had a green light, and the pedestrian had a red signal when she crossed, police said. The driver, described only as being in a dark-colored vehicle, fled the scene. The pedestrian, whose name was not released, died. The crash is under investigation.