During takeoff, the #7 tire failed, prompting the flight crew to abort the takeoff. The aircraft was stopped with approximately 3000 feet of remaining runway. A fuel leak originating from the right wing caused an evacuation from the left side of the aircraft. However, the second officer failed to relay critical instructions to the pilot, and upon activating the evacuation signal, slides/rafts were deployed on both sides of the aircraft. After approximately 20 occupants had evacuated through Exit 1L, the stitching in the grid loop failed at that location. Subsequently, the slide/raft separated, resulting in two seriously injured passengers. An investigation revealed that the #7 tire had failed due to a faulty inner bearing, which caused excessive heat, leading to fuse melting and blowing out. The cause of the bearing failure was not verified.During takeoff, the #7 tire failed, prompting the flight crew to abort the takeoff. The aircraft was stopped with approximately 3000 feet of remaining runway. A fuel leak originating from the right wing caused an evacuation from the left side of the aircraft. However, the second officer failed to relay critical instructions to the pilot, and upon activating the evacuation signal, slides/rafts were deployed on both sides of the aircraft. After approximately 20 occupants had evacuated through Exit 1L, the stitching in the grid loop failed at that location. Subsequently, the slide/raft separated, resulting in two seriously injured passengers. An investigation revealed that the #7 tire had failed due to a faulty inner bearing, which caused excessive heat, leading to fuse melting and blowing out. The cause of the bearing failure was not verified.