A man surnamed Sun who jumped into a Terracotta Warriors pit, causing damage to two armored warriors in Xi'an, capital of Shaanxi province, was investigated to suffer from a mental disorder, local police said.

Sun, 30, has now been put under police control, said a statement released by Lintong branch of Xi'an Bureau of Public Security on the early Saturday morning.

The case took place at about 5:30 pm on Friday when Sun climbed over the guardrails and protective nets of the archaeological site and jumped into the No 3 pit, pushing and pulling the armored warriors, resulting in damage to varying degrees on the historical relics, said the statement.