Police search for 7-year-old Brisbane boy

Police are searching for a seven-year-old missing boy in south Brisbane.

The boy was last seen on Saturday afternoon at South Bank, walking towards the Goodwill Bridge, which he is believed to have crossed to make his way into the CBD around the Botanical Gardens.

He is described as being Caucasian, about 135 cm tall and dressed in a grey shirt with a crocodile on it, white and blue shorts and sandals.