4.14pm UPDATE
Paramedics treated one man aged in his twenties for abdominal pain and a suspected broken leg.
He was taken to The Alfred hospital in a stable condition.
A second patient was treated for minor injuries at the scene and taken to Casey Hospital.
***
4.06pm UPDATE
Ambulance crews were called to a multi-vehicle collision involving seven cars and two trucks on the Monash Freeway about 2.45pm on Tuesday 18 July.
An Ambulance Victoria spokeswoman said paramedics treated two people on scene, who were both in a stable condition and taken via road to Casey Hospital and The Alfred as precautionary measures.
More details to come.
***
All outbound lanes on the Monash Freeway are closed at Narre Warren North Road due to a collision involving multiple vehicles.
VicRoads advises that delays are building quickly, and that motorists should use the Princes Highway as an alternative route.
Multiple emergency services are on-scene.
One outbound lane is also closed at Dandenong North following a crash. Delays are back to EastLink.
More to come.