Authorities are hunting for the owners of two American bulldogs who mauled a little girl at a park in Sydney's south this morning.

One of the dogs was seized by Bayside Council rangers following the vicious attack, but the other animal remains in the community.

The two-year-old was playing by the water at Turella Reserve near Sydney International Airport at around 11am when the dogs, who were unleashed, latched on to her face and ears.

CCTV of the incident show the girl's mother pushing her through the park in a stroller. (9NEWS)

They stop to play by the water's edge, when two unleashed dogs approach. (9NEWS)

CCTV footage of the incident shows the dogs' owners attempting to restrain the animals, as people walking passed also step in to help.

One of those was Mario Bogdanyi, who told 9NEWS the dogs "were actually up trying to grab the baby".

The mother started screaming and held the baby up in the air to try and keep her away from the dog.

People can be seen chasing down the bulldogs in an attempt to protect the child. Picture (9NEWS)

Witnesses to the attack called an ambulance, and the child was taken to hospital. Picture: 9NEWS (9NEWS)

"(The girl's mother) must have grabbed it out of the pram, and she was holding it away from the dogs and they were trying to get the baby."

“I've got kids - you don't want to see that.”

Mario Bogdanyi was walking in the park at the time of the attack and stepped in to help. (9NEWS)

"She had a couple of puncture marks on her face. They tore a bit of the bottom of her ear."

Mr Bogdanyi rang emergency services and the girl was taken to St George Hospital, where she remains in a stable condition.

One of the dogs was seized by Bayside Council rangers and it has been taken to the pound, but 9NEWS has been told that police are unable to track down the owner, as the animal isn't microchipped.

(9NEWS)

Authorities continue to search for the owner and the second bulldog involved in the attack.