(File photo)

West Shore RCMP announced on Thursday that they have arrested five people after a year-long investigation into a drug trafficking operation in the Capital Regional District.

The suspects were apprehended after police executed warrants in Langford, Shawnigan Lake and Duncan, that are believed to be connected to the same drug trafficking operation.

The RCMP Drugs and Organized Crime Unit seized a prohibited modified handgun, four replica handguns, other prohibited weapons including brass knuckles and a switchblade knife, and approximately 90 grams of a substance suspected to be cocaine.

Police have also recovered a stolen vehicle and a mountain bike, and seized two other vehicles and a motorcycle that they believe were used in committing crimes.

One of the properties that the RCMP searched also housed an unlicensed illegal marijuana grow operation with over 100 plants.

The suspects are three men aged 32, 23 and 21 and two women aged 29 and 23.

Police say they are likely to be charged with several drug trafficking and weapons related offences.