Washington, D.C. ? The Drug Enforcement Administration said Saturday it has helped seize a submarine capable of transporting tons of cocaine.

DEA officials said that the diesel electric-powered submarine was constructed in a remote jungle and captured near a tributary close to the Ecuador-Colombia border. Ecuadorean authorities seized the sub before it could make its maiden voyage.

The sophisticated camouflaged vessel has a conning tower, periscope and air-conditioning system. It measured about 9 feet high from the deck plates to the ceiling and stretched nearly 100 feet long. The DEA says it was built for trans-oceanic drug trafficking.