TOKYO, Japan – An object suspected of being a surveillance balloon originating from China was reported to have crash landed on top of a commercial building in the neighborhood of Akihabara. Occupants were evacuated by late afternoon with all public events within the building canceled until further notice.

Japanese authorities have not be able to confirm as of yet how the balloon was able to travel so far into the country without being detected. Witnesses in the area describe having heard a sudden crash, only noticing the object after the crash had already occurred. The local government is investigating whether camouflage or radar stealth technology was used to obscure the balloon before it was brought down.

The sudden appearance of the balloon has sparked discussion online as to its purpose and creation. Some online users began speculating their own bizarre theories that the crashed object could be from another world or timeline with some even visiting the building to check out the scene for themselves.

Police have advised the public not to attempt to enter or approach the crash site due to safety risks of the balloon potentially falling further from the top floor and sharp debris still being present in the area. A suspicious man in a white lab coat has reportedly already been detained for attempting to gain unauthorized entry into the building.