A warplane crashed Monday into a residential area in the Russian port city of Yeysk on the Sea of Azov after suffering engine failure. The crash ignited a massive blaze that engulfed several floors of a nine-story apartment building. A Russian Su-34 fighter-bomber came down after one of its engines caught fire during takeoff for a training mission, the Russian Defence Ministry said. It said both crew members bailed out safely, but the plane crashed into a residential area, causing a fire as tons of fuel exploded on impact. There was conflicting information about casualties on the ground, while…