The Santa Elmira massacre was a massacre on activists of the Brazilean Landless Workers' Movement (MST) in Rio Grande do Sul in 1989. In early 1989 a group of the MST, that had been resettled in Salto do Jacuí occupied the Santa Elmira ranch. An order to dislodge them was issued, but the MST refused to leave the land. They were forcefully evicted from the land by military forces and small farming aircraft of the União Democrática Ruralista (that dropped tear gas bombs).