A policeman, who had been deployed as a security guard of visiting the United Nations Secretary General Antonio Guterres to the Annapurna Base Camp in Nepal, has died of altitude sickness.

The deceased has been identified as Assistant Sub-Inspector Tikaram Dhungana.

After complaining of health problems, Dhungana was taken to Pokhara by a rescue helicopter this morning.

Upon his admission to a hospital in Pokhara, he was declared dead at 9:40 am, said Deputy Superintendent of Police Shrawan Kumar BK.

Dhungana, who reached the Base Camp by a helicopter, complained of respiratory problems upon returning on foot, it has been said.

He was posted at the police post in Ghandruk of Annapurna Rural Municipality in Kaski district.

The UN Secretary General had reached the Base Camp on Tuesday morning.

Nepal Army and Nepal Police personnel were deployed for his security.