What language do the Buryats of Siberia speak?

Buryat is written using the Cyrillic script, which was introduced during the Soviet period in the 1930s. This script replaced the Buryat Classical Mongolian script that had been in use since the early 20th century. Today, Buryat Cyrillic consists of standard Cyrillic letters, as well as several additional letters that represent unique Buryat sounds.