The US placed more members of Myanmar’s ruling military junta on a financial blacklist on Monday for the deadly attacks against civilians following the February coup in the southeast Asian nation.

The treasury department’s Office of Foreign Assets Control imposed financial sanctions on 16 people and the newly created State Administration Council. The designation freezes any assets they have within a US jurisdiction and bars anyone within a US jurisdiction from conducting any financial transactions with them.

Thirteen of the people are senior members of Myanmar’s military, which seized control of the country in February and has killed hundreds of people, including children, to suppress opposition. The other three are adult children of three senior military officials who were previously designated for US sanctions.

Treasury said announcing the new sanctions that the Myanmar military is responsible for deadly attacks on civilians and the State Administration Council was created by the armed forces “to support the unlawful overthrow of the democratically elected civilian government”.