The seized firearms were reportedly smuggled into the country from Turkey.
This was disclosed by the agency's Comptroller General, Col. Hameed Ali, on Monday, September 11, 2017.
He revealed that the rifles were discovered by the operatives of the NCS intelligence unit on September 6 after they spotted a 1x20ft container with registration number GESU2555208 which was not previously listed for examination for that day.
After the container was transferred to the Enforcement Unit, it was discovered that the Bill of Lading indicated that the contents were washbasins and water closets.
The firearms discovered in the container include 600 pieces of Jojef Magnum black pump action rifles, 300 pieces of Jojef Magnum silver pump action rifles and 200 pieces of Jojef Magnum plastic single-barrelled hunting pump action rifles.
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Col. Ali said, "This particular seizure being the third in the series of arms seizures within eight months of this year presents an all-time high of the triumph of the NCS over evil forces.
"The audacity of these criminals to think that they can succeed in smuggling such quantity of deadly weapons into the country calls for all round responsibilities.
"Shipping agencies and terminal operators must wake up to support the service to nip in the bud attempts to smuggle such dangerous items into the country."
The firearms were loaded into a 20-foot container and conveyed by a vessel, MV Bella Shuttle, that arrived in the country on January 1 with the help of a terminal clerk at the port and a customs officer.