Police confirmed a crash was reported at Nikao close to the Asian Development Bank office.
Spokesman Trevor Pitt said it was a motorbike driver, and he was taken to hospital.
An eye witness said the driver was coming from the airport towards Arorangi and had hit the edge of another vehicle’s trailer.
The trailer driver had just turned out of a driveway to go towards the airport, he said.
The bike driver had a bleeding nose and had other bleeding around his facial area.
The witness said the ambulance arrived five minutes after the incident.