VIDEO: An Oakland fire crew was delayed on making an emergency medical call July 4th evening when an unruly mob near Lake Merritt blocked its path and climbed onto the engine. The incident was captured on a video released Sunday night on the Oakland Firefighters Facebook page. The video showed a crowd gathered around an Oakland fire truck at the intersection of Lakeshore and Brooklyn Avenues on the east side of Lake Merritt. The post said the crowd “was jumping, dancing and banging on the fire engine.” Oakland Fire spokesman Michael Hunt said that engine was one of two assigned “roving patrols” stationed near the lake to respond to an expected barrage of calls on July 4. Hunt said the crew shown in the video had been called at 11:31 p.m. Saturday to a medical call near the lake.