The Fire marshal is still investigating how one El Metro bus caught fire over the weekend. The incident occurred Sunday morning at the corner of San Bernardo and Burnside. According to fire officials, a call came in about smoke coming out of the engine, but when they arrived the bus was fully engulfed. All passengers were evacuated and no one was injured in the incident. The bus did receive a significant amount of damage. An investigation is now ongoing. El Metro officials on the scene refused to comment.