SEOUL, South Korea  Former President Roh Moo-hyun of South Korea, whose reputation as an upstanding political leader had been tarnished recently by a corruption scandal, committed suicide on Saturday by jumping off a cliff near his retirement home, according to his aides and the police.

Mr. Roh, 62, died while he was hiking on a hill in Bongha, a village near the southeast corner of South Korea, Moon Jae-in, Mr. Roh’s former presidential chief of staff, said during a news conference. He left a brief will for his family, Mr. Moon said.

Mr. Roh suffered fatal head injuries and was declared dead in a hospital in Pusan, the largest regional city, said Park Chan-jo, a police officer. Mr. Roh was accompanied by a bodyguard during his morning hike.

President Lee Myung-bak, Mr. Roh’s successor, found the news “difficult to believe,” his office said.