A shipwreck has become the subject of a dispute between Colombia and the US-based Sea Search Armada, which claims it was the one that discovered it at the bottom of the sea.
The start of the mission to retrieve objects of "incalculable value" from the wreckage of the legendary ship San Jose that sank in 1708 has been announced by the Colombian government.
The ship was loaded with gold, silver and emeralds estimated to be worth billions of dollars.
The ship, which dates back 316 years, was discovered in 2015 and its exact location is a state secret.
Often called the "Holy Grail" of shipwrecks, it is the subject of controversy because of its archaeological and economic value.
Between April and May, the robot will pull some objects from the "surface of the ship" to see what happens when the finds come out of the water to recover the rest of the treasures, as Colombia's culture minister explained.
The operation will cost more than 4.5 million dollars and the robot will work at a depth of 600 meters.