Hong Kong - A wild boar was shot dead in Hong Kong after going on a five-hour rampage during which it injured three people and kept trapping teams at bay, police said Friday.

The 120 kilogram boar, which was about 1.3 metres long, was fighting with two dogs in rural Yuen Long near Hong Kong's border with China when it burst into a village house Thursday afternoon.

It bit a father and son aged 76 and 54 as they tried to drive it out of the house and also injured a neighbour who tried to help, a police spokesman said.

The boar was eventually locked in a store room and police and countryside warders were called to try to lure it into a cage and trap it.

The efforts failed and after a five-hour stand-off during which the boar repeatedly charged the walls and door, a team of hunters were called in to shoot the boar, the spokesman said.

Wild boar populations are believed to have boomed in recent years in Hong Kong's countryside which covers more than 70 per cent of the territory's 1,078 square kilometres. (dpa)