Former South Korean President Roh Moo-hyun has died of head injuries after falling into a ravine while climbing a mountain, police say, BBC reported.
Mr Roh, 62, was pronounced dead on arrival at a nearby hospital in the southern city in Busan.
An aide to the former president said he had left what appeared to be a suicide note before jumping to his death.
The former president left office in February 2008 and had been under investigation for alleged bribery.
"President Roh fell down a mountain. He was transported to a hospital where doctors said he had been dead upon arrival," a spokesman of the National Police Agency told the AFP news agency.
"We're investigating whether he fell by accident or committed suicide," he said.
Medics said Mr Roh was pronounced dead at Busan's hospital at 0930 local time (0030 GMT) after being transported from his hometown of Gimhae.
Mr Roh's former assistant, Moon Jae-in, said in a statement broadcast live on national TV and radio that the former president had left a suicide note.
"Former President Roh left his house at 0545 (2045 GMT on Friday) and while hiking on the Ponghwa Mountain, appears to have jumped off a rock at around 0640," he said.
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