ISTANBUL: Amnesty International called on Turkish authorities Thursday to launch an investigation into alleged “police violence” during a wave of protests this year, saying some instances “could amount to acts of torture.”

The arrest of Istanbul mayor Ekrem Imamoglu on March 19, the leading opponent of Turkish President Recep Tayyip Erdogan, sparked Türkiye’s worst street protests in over a decade.

“Our findings reveal damning evidence of unlawful force frequently used by law enforcement officers,” said Esther Major, a deputy director at the global human rights group.

“The authorities used tear gas, pepper spray, kinetic impact projectiles and water cannons against people who were simply exercising their rights,” she said in a statement.

“The violations documented constitute cruel, inhuman, or degrading treatment and, in some cases, may amount to torture,” Major said, calling for the launch of an investigation.