This is the hilarious moment two pet dogs engaged in a full-blown 'bark-off' from separate cars stuck in traffic.

Jake Bruzo spotted a Shih Tzu in a black sedan squaring off with a dachshund inside a red Toyota Vios on a busy road in Manila, the Philippines.

Footage shows the white pooch leaning out of the open window, trading noisy jabs, while the brown pup in the next lane intently stares at the canine on August 3.

Moments later, the owner of the brown pup in the other lane rolled up their window to stop the visibly riled pooch from growling at its furry rival.

Experts believe that dogs may bark or growl at other dogs out of fear or anxiety, as they can feel threatened and respond defensively to protect themselves.