Colombia says treasure-laden San Jose galleon found

"Great news! We have found the San Jose galleon," the president tweeted. 

The wreck was discovered near the port city of Cartagena. 

It has been described as the holy grail of shipwrecks, as the ship was carrying one of the largest amounts of valuables ever to have been lost at sea.

Mr Santos said the cargo was worth at least $1bn (£662m).