A motorcyclist has been killed in a sickening collision with a truck in Sydney's north shore, bringing traffic to a standstill.
The crash has happened on the corner of the Pacific Highway and Telegraph Road in Pymble - northbound lanes are blocked.
Traffic is being diverted around the crash site.
Paramedic Fiona Kruit says the passenger on the motorcycle was also badly injured in the smash.
"A second person on a motorcycle's been transferred to Royal North Shore hospital in a serious condition."