Greek police and customs officials intercepted a 447-kilogramme (985-pound) shipment of Latin American cocaine headed for Bulgaria, the finance ministry said Wednesday. Five people were arrested over one of the biggest drug busts in the country: a Bulgarian man, two Greek women and two Greek men, one of them a customs broker. The drug shipment from Bolivia was discovered last month in the main Greek port of Piraeus inside a container nominally carrying scrap metal. Last year, the Greek coastguard assisted a French navy operation that led to the seizure of three tonnes of cocaine from a Panamanian-registered boat off the west African coast. 