FILE - In this March 7, 2008 file photo, smugglers cross the Tachira River carrying Venezuela gasoline into Colombia, in Cucuta, at the Colombian border with Venezuela. President Nicolas Maduro has ordered the closure of a major border crossing with Colombia after three soldiers were attacked while looking for smugglers. Maduro late Wednesday, Aug. 19, 2015, said the normally busy border in western Tachira state would remain closed for 72 hours. (AP Photo/William Fernando Martinez, File)