This is the amusing moment a robot dog was seen walking around a shopping mall in Texas.

Footage shows the four-legged droid on a leash being guided by a teenager at the River Centre Mall in San Antonio.

Stunned by the sight, a passerby can be heard saying: ‘Good evening, guys. What in the hell is that?' before asking the girl if he could record the unusual pet on May 27.

He added: ‘Bro, it's even making dog noises. That was crazy.'

Robot dogs have become increasingly popular and were widely exhibited in China recently for their agility and utility.

Last year, Taishan Cultural Tourism Group in Shandong tested a robot dog as a porter to carry storage boxes at Mount Tai.

Human and animal-like robots are being developed in several countries, with China and the United States leading the 'tech arms race.'

A military-style robot dog was even seen protecting President-Elect Donald Trump in Florida earlier this month.

Eccentric billionaire Elon Musk, who played a prominent role in Trump's recent U.S. election victory, recently presented Optimus, describing it as a multi-functional assistant capable of handling household chores, playing with children, and assisting with various repetitive tasks.