A major police operation targeting gang violence has seen 31 people arrested in the past week.
Operation Alliance had stationed officers patrolling Melton, Brimbank, and Wyndham from last Wednesday to Sunday night.
During the first night of the operation, police intercepted a car on the Melton highway where they found $15,000 in cash, methylamphetamine, and a number of phones and other items.
31 people arrested during blitz on western suburbs gang violence