As CBN News reported, the artwork known as the "guardian for international peace and security" was first displayed in November outside of the UN's Visitors Plaza. 

Stéphane Dujarric, spokesperson for the Secretary-General, told CBN News the sculpture was not permanent and its removal was planned.

"The statue you refer to was a temporary exhibit organized by the Permanent Mission of Mexico to the United Nations. It was taken down, as scheduled and anticipated, on 20 December," Dujarric said in a statement on Wednesday.