Guinea ? A bridge collapsed under an overloaded truck in Guinea, throwing scores of passengers into a river and killing at least 70, witnesses and the West African country’s state radio said Wednesday.

The truck was ferrying merchandise and people from a market near the southeastern town of Gueckedou when the accident happened Sunday, state-run RTG radio reported.

The 50-year-old rock and concrete bridge collapsed as the truck was crossing, tipping the vehicle and sending people as well as bags of cement and sacks of rice crashing into the river. Many of the passengers drowned, trapped under the cargo, RTG said.