A passenger train derailed and plummeted into a ravine in central Burma, killing 102 people in what broadcast reports said was the country’s deadliest train accident ever.

The train, traveling between Mandalay and Myitkyina, the Kachin state capital, derailed Friday near the town of Wuntho when the brakes failed as it descended a hill.

The train lost control, and several coaches plunged into the ravine, radio reports indicated.

An undetermined number of people were injured.

The reports did not mention how many passengers were aboard the train. Such trains are typically crowded, however.

Railways Minister U Win Sein and Deputy Health Minister Col. Than Zin visited the accident site, radio and television reports said.

Wuntho is about 475 miles north of Rangoon, the nation’s capital.