Staff Reporter :The highways still remain unsafe despite countrywide uproar over frequent road crashes. The government banned movement of auto-rickshaws and non-motorised vehicles on the highways across the country from August 1 following the frequent accidents involving heavier vehicles resulting in deaths of many human lives in recent times.On Wednesday, four persons were killed and three others injured when a pick-up van overturned on Dhaka-Chittagong Highway at Bhaberchar in Gazaria upazila in Munshiganj district. The identities of the deceased could not be known immediately. Hedayetul Islam Bhuiyan, Officer-in-Charge of Gazaria Police Station, said the pickup van skidded off the road and turned turtle as its driver lost control over the steering, leaving its four passengers dead on the spot and three others injured.The injured, including the driver of the pick-up van, were rushed to different local hospitals. On information, police rushed in and recovered the bodies . Meanwhile, two war crimes accused and four policemen were injured as a prison van collided head-on with a bus in Rajendrapur area on Dhaka-Mymensingh Highway in front of National Park in Gazipur district on Wednesday morning.The injured war crimes accused are Hazi Amjad Ali and Riaz Uddin Fakir. The injured cops are Mehedi and Wasim, Habildar Nooruddin and Naik Mostafizur.Baharul Alam, Sub-Inspector, In-Charge of Naujor Highway Police camp, said the Netrakona-bound bus from Dhaka collided head-on with the prison van in the area around 8:00am, leaving two war crimes accused and four policemen injured.The war crimes accused were being taken to Dhaka by the prison van to be produced before the International Crimes Tribunal. They have been admitted to Dhaka Medical College Hospital, said the SI. Earlier, police arrested the war crimes accused Hazi Amjad Ali from Keshoreganj village and Riaz Uddin Fakir from Bhalukjan village in Fulbaria upazila of Mymensingh district on Tuesday afternoon. The tribunal earlier issued a warrant for arrest of the two suspected war criminals.