The Border Guards in Jazan region managed on Monday to foil an attempt to smuggle a large quantity of hashish, the official spokesman of the border guards, Colonel Saher bin Mohammed Al-Harbi said. A boat carrying three Yemenis and 509.75 kgs of hashish was detected while trying to enter the Saudi waters in the range of responsibilities of Farasan sector, the spokesman added. The boat was stopped and searched. The smugglers and hashish were seized.