Turkish drug enforcement agents have destroyed 30,000 marijuana plants being secretly grown in a vast terraced garden by the Tigris River that is on the UN Cultural Heritage list, media reports said on Sunday.
In a joint sunrise operation involving divers and boats backed by helicopters and drones, drug enforcement agents and local police raided the Hevsel Gardens in Diyarbakır in the mainly-Kurdish southeast, IHA news agency and Cumhurriyet newspaper reported.
They did not say when the raids took place.
Inside the gardens, which cover an area stretching some 700 hectares (1,700 acres) between the Diyarbakır fortress and the Tigris River, they found thousands of marijuana plants growing at 31 locations.
The plants would have yielded about 5.3 tons of cannabis, worth approximately 2 billion Turkish lira ($51 million), the reports said.
There was no immediate comment from the interior ministry.
The growers had taken advantage of the fact that vehicles cannot enter Hevsel Gardens, due to the nature of the terrain, to set up tents to conceal and protect the plants, and were using irrigation systems to draw water from the Tigris, the reports said.
It was not immediately clear whether anyone had been arrested.
In 2015 the terraced gardens — which are still used for growing agricultural crops — were recognized as a UNESCO World Heritage site along with the Diyarbakır fortress, in an acknowledgement of their historical and cultural significance.
© Agence France-Presse