Gunmen ambushed a bus carrying dozens of people in western Ethiopia near the Sudanese border, killing nine and wounding six others, Retuters quoted state-run media as saying on Wednesday. The bus ambush on Tuesday evening - near the $4 billion-Grand Renaissance Dam - was the second attack on public transportation in the Benishangul Gumuz region in five months. "The bus was targeted while travelling 100 kilometres (62 miles) south of (regional capital) Assosa," a report on state-owned Ethiopian Television said.