Mirroring unfounded theories about the origin of the coronavirus from right-wing politicians in the United States, a spokesperson from China’s Foreign Ministry has tweeted his own unsupported insinuation about where the virus came from.

“It might be the US army who brought the epidemic to Wuhan,” wrote Zhao Lijian in a post featuring a clip of CDC Director Robert Redfield addressing the House Oversight Committee on the virus outbreak.

“Be transparent! Make public your data!” Zhao continued. “US owe us an explanation!”

1/2 CDC Director Robert Redfield admitted some Americans who seemingly died from influenza were tested positive for novel #coronavirus in the posthumous diagnosis, during the House Oversight Committee Wednesday. #COVID19 pic.twitter.com/vYNZRFPWo3 — Lijian Zhao 赵立坚 (@zlj517) March 12, 2020

2/2 CDC was caught on the spot. When did patient zero begin in US? How many people are infected? What are the names of the hospitals? It might be US army who brought the epidemic to Wuhan. Be transparent! Make public your data! US owe us an explanation! pic.twitter.com/vYNZRFPWo3 — Lijian Zhao 赵立坚 (@zlj517) March 12, 2020

Zhao’s theory, which has circulated around Chinese social media a bit in recent weeks, is apparently that US soldiers brought the disease with them to Wuhan while coming to take part in the 2019 Military World Games, which were held in the Hubei capital between October 18 to 27.

The conspiracy theory makes about as much sense and is backed by the same amount of evidence as one backed by Republic Senator Tom Cotton that the coronavirus was created in a Chinese biological warfare lab.

Zhao recently got a job in the Foreign Ministry after serving as deputy chief of mission at the Chinese embassy in Pakistan where he became China’s most infamous diplomat on Twitter, feuding with former US national security adviser Susan Rice, leading to her calling him a “racist disgrace.”