Police have released images from a search and rescue operation underway at Beardmore Dam for a man reported missing in St George.

Emergency services were called to Beardmore Dam Reserve just after 2pm yesterday following reports a man had dived into the dam and failed to resurface.

A search involving police, police divers, SES and Queensland Fire Department swift water rescue crews was launched immediately.

Police are kindly asking locals to avoid attempting to search the area due to the potentially dangerous terrain.

The man remains missing as of 2:45pm this afternoon.