Bangkok, Thailand (CNN) -- The Thai military has taken control of the government in a coup, the country's military chief announced in a national address Thursday.
Military officials also imposed a curfew from 10 p.m. to 5 a.m. local time (11 a.m. to 6 p.m. ET), authorities said in a televised address.
The developments are the latest in a chain of failed attempts to defuse tensions that have simmered since November. The discord has its roots in politics, and led both pro- and anti-government factions to fight over the country's leadership.
The military on Tuesday imposed martial law in an attempt to end the instability, but said it was not a coup. Now, it has taken power outright.
The move came after rival factions were unable to come up with a suitable agreement to govern, the military chief said.