The Russian Luna-25 spacecraft crashed on the Moon after spinning into an uncontrolled orbit, the Russian space agency Roskosmos announced today.

Yesterday, Roskosmos made a cryptic announcement saying an “abnormal situation” had occurred aboard the Russian Luna-25 spacecraft as it prepared to enter lunar orbit, without elaborating.

Experts believed that it was a technical problem.

The Russian spacecraft was scheduled to land on the moon’s south pole on Monday to search for frozen water.

Luna-25, about the size of a small car, was intended to operate for a year at the Moon’s south pole, where scientists at NASA and other space agencies in recent years have detected traces of frozen water in craters.

The existence of water on Earth’s natural satellite is expected to be a game-changer for future missions to the Moon by major space powers, potentially allowing for longer periods of human habitation on the planet, which would enable the mining of lunar resources.