Relatives of deceased Chinese UN peacekeeper Yang Shupeng wail in mourning at a funeral ceremony in Xuchang, central China's Henan Province, July 21, 2016. Chinese UN peacekeepers Li Lei and Yang Shupeng were killed on the evening of July 10 after a mortar shell hit their armored vehicle during fighting between two army factions in Juba, capital of South Sudan. (Xinhua/Zeng Tao)

A funeral ceremony is held to bid farewell to deceased Chinese UN peacekeepers Yang Shupeng and Li Lei in Xuchang, central China's Henan Province, July 21, 2016. Li Lei and Yang Shupeng were killed on the evening of July 10 after a mortar shell hit their armored vehicle during fighting between two army factions in Juba, capital of South Sudan. (Xinhua/Zhang Yongjin)

A funeral ceremony is held to bid farewell to deceased Chinese UN peacekeepers Yang Shupeng and Li Lei in Xuchang, central China's Henan Province, July 21, 2016. Li Lei and Yang Shupeng were killed on the evening of July 10 after a mortar shell hit their armored vehicle during fighting between two army factions in Juba, capital of South Sudan. (Xinhua/Yin Gang)

A funeral ceremony is held to bid farewell to deceased Chinese UN peacekeepers Yang Shupeng and Li Lei in Xuchang, central China's Henan Province, July 21, 2016. Li Lei and Yang Shupeng were killed on the evening of July 10 after a mortar shell hit their armored vehicle during fighting between two army factions in Juba, capital of South Sudan. (Xinhua/Zeng Tao)

Comrade-in-arms of deceased Chinese UN peacekeepers Yang Shupeng and Li Lei attend a funeral ceremony in Xuchang, central China's Henan Province, July 21, 2016. Li Lei and Yang Shupeng were killed on the evening of July 10 after a mortar shell hit their armored vehicle during fighting between two army factions in Juba, capital of South Sudan. (Xinhua/Zhang Yongjin)

A funeral ceremony is held to bid farewell to deceased Chinese UN peacekeeper Yang Shupeng and Li Lei in Xuchang, central China's Henan Province, July 21, 2016. Li Lei and Yang Shupeng were killed on the evening of July 10 after a mortar shell hit their armored vehicle during fighting between two army factions in Juba, capital of South Sudan. (Xinhua/Yin Gang)

A funeral ceremony is held to bid farewell to deceased Chinese UN peacekeepers Yang Shupeng and Li Lei in Xuchang, central China's Henan Province, July 21, 2016. Li Lei and Yang Shupeng were killed on the evening of July 10 after a mortar shell hit their armored vehicle during fighting between two army factions in Juba, capital of South Sudan. (Xinhua/Zeng Tao)