The President of Mongolia, Battulga Khaltmaa, has been placed under a 14-day quarantine for coronavirus after returning from China, state media ULAA.
The state news agency Montsame on Friday reported that other top government officials were affected and they have been placed under surveillance after their return from China.
Battulga is the first president to visit China since the outbreak of the dreaded Coronavirus in the country which has led to the death of many.
The president Battulga was in Beijing with Foreign Minister Tsogtbaatar Damdin and other senior government officials on Thursday.
They held a meeting with Chinese President Xi Jinping and Premier Li Keqiang.
They were taken into quarantine as soon as they arrived in Mongolia as a precautionary measure, Montsame said.