Two more people have been arrested in Co Galway as part of the ongoing investigations into the discovery of cannabis plants worth 2.5 million euro.

The two men aged in their 30s were arrested in the Tuam area yesterday evening and are being held along with two others at at Mill Street Garda Station.

The three-thousand plants were found yesterday morning during a planned search of a business premises in Tuam.

Two other men, aged in their mid forties and early fifties, are also being held in relation to the discovery.