A motorcyclist has died after a collision involving a truck in west Belconnen.
Police said the collision occurred on Southern Cross Drive, near the intersection of Beaurepaire Crescent, in Holt, about 5.10pm on Tuesday.
The truck was travelling eastbound and the motorcycle westbound on Southern Cross Drive when the collision occurred.
"Emergency services treated a person - who was riding the motorcycle - at the scene before they were transported to hospital in a critical condition. Sadly, they were declared deceased soon after," police said in a statement.
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"The driver of the truck is assisting police with their inquiries."
It was the sixth death on ACT roads this year.
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ACT Ambulance, Fire & Rescue, and ACT police attended the crash, and ACT Policing's Major Collision Team is investigating the circumstances.
The crash caused major delays on the roads, which were closed for some time on Tuesday evening.
Police asked anyone who saw the crash or who may have dash-cam footage of the collision to contact Crime Stoppers on 1800 333 000, or via the Crime Stoppers ACT website.