Thunderstorm lashes Geraldton in WA

Emergency services have responded to more than 20 calls for help after a thunderstorm hit Geraldton in Western Australia's Mid West region.

The storm struck late on Sunday, bringing heavy rain.

Rangeway and Geraldton central were worst hit with 13 calls for help, the Department of Fire and Emergency Services said.

Most of the calls involved minor damage to roofs and flooding.

There have also been reports of flooding in the nearby town of Mullewa.