The Colombian navy says it has seized a boat smuggling more than a tonne of cocaine.
Navy personnel chased the speed boat along the Pacific coast of Choco province, the BBC reports.
Two of its occupants jumped from the ship and escaped, a third man was arrested.
A navy official says that so far this year his force has seized two tonnes of cocaine in Pacific waters alone.
Drug-traffickers often use the dense jungle areas of Choco to launch boats loaded with drugs heading for Panama and beyond.