Human rights groups in Guinea say they believe more than 135 football fans were killed in a crush at a stadium on Sunday, most of them children. The figure, which is unverified, far exceeds the official number of deaths at 56.

A controversial refereeing decision sparked violence at a soccer match in southeast Guinea, killing at least 56 people, the government said.

An unknown number of others in the country’s largest southern city were injured when security tried to stop clashes over a disputed penalty,