An explosion along the Colonial pipeline in Shelby County, Alabama killed one worker, injured five others and shut down a major gasoline and diesel artery that moves fuel from Texas to New York. The blaze was sparked around 2 p.m.local time when a crew of contract workers using a trackhoe was performing maintenance on the system, according to Colonial Pipeline Co., which operates the network. The machinery breached the pipe and ignited gasoline inside the line, causing a fire that continued to burn late Monday night. The injured workers, some in critical condition, were transported to hospitals in Birmingham, Alabama, about 30 miles north, said Lt. Russell Bedsole of the Shelby County Sheriff’s Office. The accident occurred in a remote area, and emergency officials worked Monday afternoon to clear the few residents in the area. “This appears to be an accident,” Lt. Bedsole said. “There is no suspicion of terrorist activity.” The Colonial pipeline moves gasoline, diesel and ...