UPDATED 9.50AM: An oil spill on the M1 Princes Highway near the Figtree exit this morning is causing heavy delays for drivers.
The spill, which occurred between Five Islands Road and Mount Keira Road in Spring Hill, is slowing down northbound traffic.
One of two northbound lanes are still closed while emergency services clean it up.
Drivers are advised to reduce their speed near the Figtree exit with reported traffic delays to Dapto.
A two-car accident on Five Islands Road at Lake Avenue in Cringila has closed two of four westbound lanes further increasing traffic delays.
Emergency services are at the scene.