A car travelling behind a cyclist who was hit and killed north of Brisbane had tried swerving to miss them, police say.

The cyclist, a 69-year-old Bribie Island man, was riding east on the island towards Woorim along First Avenue about 4.30pm Thursday.

First Avenue, heading east towards Woorim on Bribie Island. Credit:Google Street View

Police said initial investigations suggested the car had been driving behind the man and had swerved in an attempt to avoid the collision.

The cyclist was declared dead at the scene. The 69-year-old driver of the car, from Tiaro, was not injured.

The forensic crash unit is investigating.

Anyone with information is urged to contact Policelink on 13 14 44 or Crime Stoppers on 1800 333 000.