Three staff members from Doctors Without Borders (MSF) have been killed in Ethiopia's Tigray region, the aid organization said Friday. A Spanish emergency coordinator and two Ethiopian workers were found dead near their vehicle on Friday, a day after contact to the group was lost. The circumstances of the deaths were not immediately clear. "We condemn this attack on our colleagues in the strongest possible terms and will be relentless in learning what happened," dpa quoted MSF as saying in a statement.