Unmanageable Perth businessman has been arrested and detained in Venezuela, charged with having a trafficable quantity of cocaine on a yacht.

Perth businessman has been arrested and detained in Venezuela, charged with having a trafficable quantity of cocaine on a yacht.It is understood the 44-year-old was charged along with a US citizen.A Sydney man has also been arrested in connection with the drug haul.The Department of Foreign Affairs says the Perth man's case is being monitored by staff from the Australian embassy in Brazil.