MOSCOW, July 31 (Itar-Tass) - A Russian helicopter made a tough landing in Ethiopia on Wednesday, four crewmen were hurt, a Russian embassy source in Addis Ababa told Itar-Tass.

"The four crew members, three of whom are in serious condition, have been taken to a Red Cross hospital. The condition of the fourth crewman is considered to be of medium gravity,” the Russian embassy source said.