India’s space agency lost touch with its Vikram lunar lander as it made its final approach to the Moon’s south pole on Saturday.

And no one seems to know if it crashed or landed.

A successful landing would have made India just the fourth country to land on the moon, after the U.S., the former Soviet Union and China.

In April, an Israeli spacecraft attempting to land crashed moments before touchdown.

India’s Chandrayaan-2 launched in July on a $140 million mission to deploy a robotic rover to search for signs of water that were confirmed by a previous mission in 2008.

The space agency said the descent was normal until 1.2 miles from the moon’s surface.

The control center was jubilant during the first 10 minutes of the lander’s descent, the Associated Press reported, with scientists breaking out in occasional cheers.

The mood suddenly turned somber and then dejected when the lander stopped sending data during its final minutes of descent.

“I can understand the sadness in your face,” Prime Minister Narendra Modi later told gathered scientists.

“I have lived the moment with you when communication with the spacecraft was lost.”