Fishery officers seized more than two tonnes of fish in Hay River, N.W.T., after they say they witnessed illegal fishing activities during a patrol of Great Slave Lake.

Fisheries and Oceans Canada says 2.35 tonnes of fish were seized from the Hay River processing plant.

DFO says it conducted eight aerial patrols of various areas in Northwest Territories this year. It says charges will be laid in the near future related to violations witnessed during three of these aerial surveillance activities.

People that work in the fishing industry told CBC News they saw officials from both DFO and RCMP at Fisherman's Wharf and at the local fish processing plant on Saturday.