The Chilean government has declassified a video and released a report on an unidentified flying object sighting that occurred over two years ago.

The nine-minute video was picked up by a Chilean Navy helicopter at an altitude of 1,370 meters (4,500 feet) along the coast between the port of San Antonio and Quinteros on November 11, 2014. The helicopter’s infrared camera operator detected an unknown object in the distance, which appeared to be flying at a similar speed to the helicopter, at around 244 kilometers (152 miles) per hour.

Two experienced Navy officers on board also saw the object. According to the Huffington Post, one told the investigation that the object had a “flat, elongated structure” with “two thermal spotlights like discharges that did not coincide with the axle of motion.”

Most bizarre of all, the heat-sensitive infrared cameras show the object appearing to thrust out a plume of an unidentified hot material at least twice.

They contacted two radar stations in an attempt to identify the object, neither of which could find it. Before they knew it, the object vanished into the clouds.

After two years of investigation by a team composed of leading scientists and aviation technicians, the CEFAA – a wing of Chile’s aviation agency – appears to be no closer to solving the mystery than before.

In a statement, translated by Google, they said: “Some analysts have suggested the hypothesis that it is a medium-sized line aircraft and that the stelae of the detachable element may be the reserve water inside the apparatus, thrown by the crew. However, meteorology asserts that neither the altitude at which the object moved, nor the ambient temperature of that moment, allowed such a wake of condensation.”

For now, the object remains unidentified. You can see the video for yourself below.