More than 5 tons of drugs were seized off the coast of Panama after authorities spotted what appeared to be a semi-submersible vessel, the country's ministry of public security said.
Officers with Panama's National Aeronaval Service were patrolling the country's territorial waters Wednesday and found the "homemade" vessel near the province of Bocas del Toro, officials said.
Authorities seized more than 5 tons of drugs inside the vessel and arrested four Colombian citizens, the ministry said.