Leading Rwandan opposition politician Seif Bamporiki has been shot dead in South Africa, where he lived in exile.
Mr Bamporiki was pulled from his vehicle in a township in Cape Town before being killed, police said.
Preliminary investigations showed he had been killed in a robbery, police said. But Mr Bamporiki’s party, the Rwanda National Congress (RNC), said the motive was still unclear.
Rwanda has previously been accused of targeting dissidents in South Africa.
It has consistently denied the allegation. The RNC was formed in exile by opposition politicians who accuse President Paul Kagame’s government of being authoritarian, and of being intolerant of dissent.