KABUL, Afghanistan — A U.S. military spokesman said Afghan and coalition troops seized 40 tons of hashish during a raid in Afghanistan.

Lt. Cmdr. Walter Matthews said the drugs were found during a raid today in Spin Boldak district, Kandahar province.

Border police commander Abdul Raziq said the drugs were found in the basement of a compound in Nawa Kili village. He said American military helicopters were used during the raid.

Afghanistan is the world's largest producer of opium, the main ingredient for the production of heroin. The country also grows large quantities of cannabis, the plant used to produce hashish and marijuana.