At least 42 dead in Pakistan road accident
In this file photo, vehicles jam a road in Karachi, on June 9, 2007 - by Asif Hassan
The dead and injured included women and children.
The accident happened in the town of Sukkur, 425 kilometres (266 miles) north of Karachi in the southern province of Sindh.
Fida Hussain Shah, a senior police officer in Sukkur who gave the casualty figure, said the bus driver was killed on the spot while the driver of the tractor-trolley was wounded.
Police said the cause of the accident was yet not clear. Tractor-trolleys are a common form of transportation in rural areas.
Sharjeel Kharal, another senior police official, confirmed the incident and told AFP the injured have been taken to a nearby government-run hospital.
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