Queensland authorities have issued an urgent public health warning to market-goers in Brisbane's inner south, following the discovery of a diseased bat at the West End site on Saturday.

The Metro South public health unit has urged anyone who attended Saturday morning's popular West End markets at Davies Park who may have been near a dead bat found at the site to call health authorities.

A diseased bat has been found at a busy park in Brisbane's inner south. Credit:photos@smh.com.au

Metro South public health physician Kari Jarvinen said a bat close to death was found in the park grounds by a member of the public and had tested positive to the potentially deadly Australian Bat Lyssavirus.

He said anyone who had touched or handled the bat could have been exposed to the virus.