A security guard was injured when a wild boar that had entered the city went on a rampage and attacked him outside the school entrance.

Police and animal control officers rushed to the scene after receiving reports about a 200-lb boar roaming around a school in Nanjing, in Jiangsu Province, in eastern China on the morning of November 29.

Upon their arrival, the animal ran into the nearby bushes and hid there. As they attempted to approach and capture it, it ran out and escaped onto the street.

During its wild spree, it attacked a security guard who could not evade it in time.

CCTV shows the boar attacking the young man in the street as it backed him into a wall and launched its enormous tusks at him.

Another person backed away in fear as the animal knocked its victim to the ground and ran its tusks before running away.

Local media later reported the guard, who was not identified, suffered injuries to his leg and required six stitches to seal the wound.

A second video shows dozens of officers chasing after it as it had entered a river, but soon ran ashore and took off at speed, evading capture.

The third piece of footage shows one lucky resident spotting it just in time as it ran towards them in the street and hiding behind a parked car.

After an almost hour-long chase, police and wildlife officers finally intercepted the rampant animal in the grass.

While they surrounded the wild boar and guided it to a sparsely populated area, staff of the Hongshan Forest Zoo shot it with tranquilisers. As it slowly fell under the effect of the anaesthesia, it went back into the river before it fell completely unconscious.

Around 30 minutes later, the animal was successfully subdued.

Officers pulled it onto a boat and brought it ashore. They said it was later sent to the Hongshan Zoo for follow-up treatment.