Police across America have published the first guide on Unidentified Anomalous Phenomena – the new name for UFOs -which details encounters between suspected encounters, and how these incidents should be reported.

The report, which is 11 pages long, warns officers of the ‘significant safety risks to law enforcement air support units’ the unidentified flying objects pose, and urge them to be vigilant when travelling in helicopters.

Officers’ stories of UFO confrontations are also included, with one in 2023 where a law employee saw a ‘trangle craft with green lights gliding through the sky’ before a local resident said something ‘ran’ nearby, the Mail Online reports.

The document has been created by police executive as ‘it’s in the interest of law enforcement to be aware of trends and reporting on UAP due to the unknown threat they may pose.’