An aspiring mayor was shot dead in southern Mexico Wednesday during a campaign rally, the Guerrero state governor said, the latest in a string of attacks ahead of weekend elections.

A video published by local media showed a person approaching Alfredo Cabrera and shooting him several times, causing chaos and panic among people attending the event.

Guerrero governor Evelyn Salgado condemned the “cowardly” murder of Cabrera, a candidate for an opposition coalition in the town of Coyuca de Benitez.