(Portland, OR) -- A semi hit two pedestrians in Portland early Sunday morning, killing one of them. The crash happened on Northeast Martin Luther King Junior Boulevard at Northeast Holladay Street in the Lloyd District. One person died at the scene and the other person was hospitalized. The semi didn't stop. A witness followed the semi which was stopped by police at Highway 224 and Southeast Johnson Road. Police say it's not clear whether the driver was aware of the crash. The investigation is ongoing.