Add Yahoo as a preferred source to see more of our stories on Google. Bushfire smoke may be increasing the risk of mental health crises among children, Australian researchers warned in a new study.

Add Yahoo as a preferred source to see more of our stories on Google. More than 1,000 families in Victoria are being urged to evacuate as bushfires burn across the state and a severe heatwave pushes temperatures in parts of southeast Australia towards 50C.