All citybound lanes of the Monash freeway are closed following a crash between a truck and a single vehicle.

“Citybound lanes are closed, due to a serious collision near Huntingdale Road,” VicTraffic tweeted.

Drivers are encouraged to exit the freeway as early as possible, using ramps at EastLink, Police Road, Wellington Road, Springvale Road or Blackburn Road.

The closure is under Victoria Police control.