UPDATE 11.30AM: AN ELDERLY man is being treated for a significant injury after a sheet of metal fell from a vehicle and smashed through his windscreen.

The man, believed to be in his 80s, received a serious hand injury following an incident on the Brisbane Valley Hwy at Fernvale at 9am.

Initial information suggests the sheet of metal came off the back of a vehicle and smashed through the windscreen of a car travelling behind, hitting the driver.

The driver was taken to the Princess Alexandra Hospital with a serious hand injury.

UPDATE 10AM: A PATIENT has been taken to the Princess Alexandra hospital with a significant hand injury after an object smashed through their windscreen this morning.

They were taken to hospital in a stable condition.

Initial information suggests something came off the back of a vehicle and smashed through the windscreen of a car travelling behind, hitting the driver.

INITIAL: A PERSON is being treated for a 'significant' injury after a projectile smashed through a car windscreen at Fernvale this morning. 

Initial information suggests something came off the back of a vehicle and smashed through the windscreen of a car travelling behind, hitting the driver.

The incident happened on the Brisbane Valley Hwy at 9am.

The driver is being treated for a significant hand injury.

Emergency services are still on scene.