President Joe Biden threatened to impose sanctions on Myanmar after Monday’s military coup and arrest of government leaders including Aung San Suu Kyi. President Biden called for a coordinated international response.

“The international community should come together in one voice to press the Burmese military to immediately relinquish the power they have seized, release the activists and officials they have detained,” Biden said in a statement.

“The United States removed sanctions on Burma [Myanmar] over the past decade based on progress toward democracy. The reversal of that progress will necessitate an immediate review of our sanction laws and authorities, followed by appropriate action,” he added.

Myanmar had been under authoritarian military rule for five decades and became a democracy in 2015. Suu Kyi was the de facto leader and the recipient of the Nobel Peace Prize in 1991 for her work promoting democracy and human rights.