Traffic queued more than 10km on M7 Motorway in Sydney's south-west after bobcat falls off back of truck

Traffic is queued more than 10km on the M7 Motorway this morning in Sydney's south-west after a bobcat fell off the back of a truck.

The accident is blocking both southbound lanes approaching the M5 Interchange at Prestons.

Southbound motorists are able to slowly pass the incident using only the breakdown lane.

All northbound lanes remain open however traffic is moving slowly.

The Transport Management Centre has urged motorists to consider delaying southbound travel on the M7 via Prestons.

Download the 9NEWS Alerts app for iPhone or Android to get push notifications when a story breaks near your location.