A barge carrying construction materials for U.S.-based Drummond Co Inc, Colombia's second biggest coal miner, was shipwrecked at the company's port late last week, the company said on Sunday, causing leakage of some diesel fuel into the sea. Drummond only recently reopened the port in northern Colombia after the government had shut down operations until the miner completed an upgrade to meet new environmental legislation. It missed the January deadline for finishing work. RCN Radio said the vessel was carrying 60 gallons (227 liters) of diesel oil. A Drummond statement confirmed the incident and said the crew was rescued but did not mention the amount of fuel that leaked into the sea.