A 44-year-old man has died after a truck crashed into a tree near Jingalup, south-west of Kojonup on Thursday morning. Emergency services were called to the crash about 9.15am after a truck towing two trailers left the road and hit a tree on Kojonup-Frankland Road in Jingalup. The man, who was driving the truck, was taken to Kojonup hospital but later died. Police, firefighters and paramedics attended the scene, which happened about 20km south of Blackwood Road. Kojonup-Frankland Road was closed in both directions after the crash. Volunteer firefighters helped clean up a small diesel spill on the road to make it safe for re-opening. Major Crash investigators are conducting an examination of the scene and have asked for any witnesses to call Crime Stoppers on 1800 333 000 or report the information online at www.crimestopperswa.com.au. Dash-cam or mobile phone vision relating to this crash can uploaded directly to investigators here.