There's been another large drug bust in Werribee, with cannabis crops uncovered in three houses at Truganina.

Yesterday's searches involved homes in Carisbrook Circuit, Jourama Court and Tilwinda Place.

Police say no arrests have yet been made.

It brings the number of Truganina homes where marijuana has been found in the last four days to seven.

At the weekend a Deer Park man was arrested in Kondalilla Drive Truganina, leading to raids on three nearby houses.