Two men wanted for Qld car robberies

Police are hunting two men over a violent carjacking attempt, an assault and the theft of multiple cars in southeast Queensland.

The crime spree started when one of the men, armed with a knife, attempted to steal a car from a Sunnybank Hills home in Brisbane at midday on Thursday.

As he backed down the driveway the car's female owner jumped in, causing the offender to run to a nearby stolen getaway car driven by his accomplice.

The male resident of the house then chased them and reached into their car to grab the keys, and his hand was slashed with a knife.

A police helicopter tracked them to the Sunshine Coast where the offenders crashed their vehicle before assaulting a man, 63, and stealing his car.

It's further alleged the offenders stole a Mazda 6 sedan from a Dundowran Beach home, and were last seen driving on the Bruce Highway near Tiaro on Thursday evening.

Police are appealing for witnesses or those with dash cam footage.