Bangladesh Premier Sheikh Hasina was accorded a warm welcome upon her arrival at the Government House, the Thai premier's office
The incident occurred at Shantidanga on Kushtia-Jhenaidah road early Friday, Assistant Superintendent of Police Noor Alam Siddique said.
Constable Ariful Islam of Islami University Police Station and two other constables were injured when their vehicle overturned after being hit by the speeding truck, Siddique said.
All the three were taken to Kustia Sadar Hospital where the duty doctor pronounced Ariful dead. Two other injured police constables were under treatment, he said.
The driver of the killer truck managed to flee the scene, he added.