Six bodies were mysteriously discovered inside a train boxcar in Laredo, Texas, on Sunday, according to authorities. A Union Pacific worker stumbled upon the dead bodies in a train yard at a remote location near the Mexican Border, according to Laredo ​Police Investigator Joe Baeza. Six bodies were mysteriously discovered inside a train boxcar in Laredo, Texas, on Sunday. Country Gate Prod. – stock.adobe.com Cops and firefighters at the scene confirmed the six people had died, but authorities have not yet determined the cause of their deaths, police said. “Union Pacific is saddened by this incident and is working closely with law enforcement to investigate,”  Daryl Bjoraas, a spokesman for Union Pacific, said in a statement to The Post. There were no survivors, and police have not said where the individuals were from. “Imagine a loading dock at a seaport, but for trains,” Baeza explained to NBC News.…