A high-altitude balloon of unknown origin is being tracked by the US government, according to a report.

The balloon is currently flying over the Western regions of the country, US officials told CBS News.

Military aircraft have determined that it is not a threat, according to the outlet, but the purpose of the balloon is unclear.

The Post has reached out to the Pentagon for comment.

<em>This is a developing story. Please check back for updates.</em>

A high-altitude balloon of unknown origin is being tracked by the US government, according to a report.{ai:summary}<p>Mysterious high-altitude balloon surveilled by US government over Western regions. Purpose unknown, not deemed a threat by military. #military</p>

High-altitude balloon of unknown origin flying over Western US: report

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