At least 56 people, including women and children, were killed and several others injured on Tuesday morning following a collision between a passenger coach and a trawler near Theri Bypass in Sindh's Sukkur district, DawnNews reported.“The Karachi-bound passenger bus, which was coming from northwestern city of Swat went on the wrong side of the road and collided head-on with a goods container, killing 56 people,” senior local police official Nasir Aftab told AFP.He said 18 passengers were injured in the accident, adding that those killed in the crash included 17 women and 18 children.The fatal accident occurred when the driver of the over-speeding coach, which was travelling from Khyber Pakhtunkhwa's Swat district to Karachi, tried to overtake a vehicle resulting in a head-on collision with a truck coming from the opposite direction, according to motorway police sources.The coach overturned after hitting the truck.Emergency and rescue teams reached the accident site and began shifting the victims to hospitals in Sukkur and Khairpur district.An emergency was imposed at the Civil Hospital Sukkur and other nearby hospitals whereas the condition of several wounded was reported as critical.President Mamnoon Hussian expressed grief over the accident and directed hospital administration to provide best possible medical treatment to the injured.

Sindh Province Governor Ishrat Ibad also expressed condolence to the family members of the victims.

QH/TF