Seoul - North Korea has executed its head of defence for treason, according to South Korean intelligence, a news report said on Wednesday.
Hyon Yong Chol, chief of the People's Armed Forces, faced a firing squad armed with an anti-aircraft gun in Pyongyang around April 30, Seoul's National Intelligence Service was quoted as saying by the Yonhap News Agency.
The disgraced commander had been seen falling asleep during a military event and had failed to carry out instructions from the country's leader Kim Jong Un, a NIS official told reporters.
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North Korea has executed another 15 senior officials since the beginning of the year, according to NIS.
In 2013, Kim had his uncle Jang Song Thaek, thought to be a former mentor, executed on charges of treason.