At least four passengers were killed and four others were seriously injured after a Volvo bus collided head-on with a trailer on the Gorakhpur Link Expressway in Ambedkar Nagar district, Uttar Pradesh, early Friday morning. The accident took place near kilometre 85, close to Amberpur toll plaza, in the Jaithpur police station area. Police reached the spot and started rescue work. Key HighlightsFour passengers died in the road accident.Four others were reported seriously injured.The crash took place near Amberpur toll plaza.Police and rescue teams reached the spot soon after the accident.How Did the Accident Happen?According to the available information, a Volvo bus coming from Bihar collided with a trailer on the expressway. The crash happened in the early hours of Friday, October 2.The impact was strong and caused serious damage to the bus. People nearby heard the crash and rushed to help.Police from Jaithpur police station reached the site after receiving information about the accident. Local people also helped the rescue teams take injured passengers out of the bus.The injured people were taken to a nearby hospital for treatment. Their condition was reported to be serious.Where Did the Crash Take Place?The accident took place on the Gorakhpur Link Expressway, near kilometre 85 and the Amberpur toll plaza in Ambedkar Nagar district.Traffic on the expressway was affected for some time after the crash. Police and rescue teams worked at the site and helped clear the area. What Are the Names and Ages of the Victims?Police and local authorities had not released the names and ages of the four deceased passengers in the reports available at the time of writing.The identities of the injured passengers were also not given in the initial reports. Officials were working to collect and confirm these details.“Four passengers were killed and four others were seriously injured after a bus collided with a trailer.”Police are investigating the exact cause of the crash. Initial reports have not confirmed whether speed, driver error or another factor caused the collision. Police Investigation UnderwayThe police are examining the accident site and collecting information about the two vehicles. Further details about the victims, the drivers and the exact cause of the collision are expected as the investigation continues.