​​UPDATE (1.18pm):

Police have confirmed that no-one was injured in a truck crash on the Hume Highway on Thursday morning.

The two-truck accident occurred near Douglas Park about 11.10am.

Both drivers escaped the incident without injuries.

​UPDATE (1.11pm):

All southbound lanes have now re-opened on the Hume Highway following a truck crash on Thursday.

The accident, between two trucks, occurred near Douglas Park about 11.10am.

While the site has now been cleared, southbound traffic is queued back to Menangle.

Motorists are advised to allow plenty of extra travel time.

UPDATE (1pm):

The site has now been cleared following a truck crash near Douglas Park.

The two-truck accident occurred on the highway near Nepean River Bridge about 11.10am on Thursday.

Nearly two hours later, southbound traffic is still queued up to 9km.

Motorists should expect delays and allow extra travel time.

UPDATE (12.31pm):

Southbound traffic is now queued up to 10km on the Hume Highway near Douglas Park.

A two-truck accident occurred near Nepean River Bridge about 11.10am on Thursday.

As a result, all southbound lanes on the highway were closed for some time.

One lane has now re-opened for southbound motorists.

However, traffic conditions remain heavy in the area.

11.23am:

The Hume Highway is partially closed following an accident on Thursday morning.

The two-truck accident occurred near Nepean River Bridge, Douglas Park, about 11.10am on April 19.

As a result, all southbound lanes on the highway have been closed.

However, motorists are using the shoulder of the Hume to get past the accident.

Traffic is now queued up to 6.5km.

Diversions are in place via Narellan Road, the Camden Bypass, Old Hume Highway and Picton Road.

Motorists can then re-join traffic on the highway.

Please note that the diversions are not suitable for B-doubles.

Emergency services and RMS personnel are at the scene.

A Transport Management Centre spokesperson said traffic conditions were heavy in the area.

The spokesperson advised motorists to allow extra travel time.