Emergency services rushed to the crash on the M4 Motorway at Eastern Creek about 2.40pm. It is believed four vehicles were involved in a head-on smash-up near Reservoir Road. NSW Ambulance ...

A truck has 'flipped' on the M4 Motorway in Sydney's west. Picture; Live Traffic NSW It was reported earlier on Thursday morning that traffic was banked up for up to 15km after the collision.