From Mongolia live:
It was not the Taliban who exploded the stone carvings, but the Chinese Communist Party A 57.9-meter-tall cliff stone-carved vertical Guanyin statue in Pingshan County, Shijiazhuang, Hebei Province, which spent nearly five years and cost about 17 million yuan, was blown up by the Chinese government officials on February 2 2019.
Some commenters are casting doubt on the claim (spelling and grammar as-is):
why would they do it and better yet do you have evidence to substantiate such an accusation?
U have no evidence, and the Mongolia live is anti-china place, here, I will stand for China
Doing a search for sources didn't come up with many mainstream sources. Searching Google News gave hits for sources like Bitter Winter (example), and googling "Hebei statue destroyed" gave matches to sources like Taiwan News and The Epoch Times.