A shelter-in-place order was issued for Peterson Space Force Base in Colorado Springs after a person threatened to carry out a shooting there.
The base, which hosts critical space operations and missile warning systems, was placed on lockdown due to the potential threat.
A message from the base was shared on Facebook, directing personnel to report to designated shelter-in-place locations.
The threat comes amid heightened tensions following the US and Israel's strike on Iran's Supreme Leader Ayatollah Khamenei.
However, authorities have not confirmed any connection between the incident and broader geopolitical tensions.
The possible reason for the lockdown was shared on the Air Force amn/nco/snco Facebook page, citing a person who made death threats on the Peterson SFB dorm discord.
The Colorado Springs Police Department confirmed the news of the lockdown, but no official statement has been issued.