"The Department can confirm all areas of the Christmas Island Immigration Detention Facility are under the full and effective control of service providers and Department staff," the statement said.
During a Tuesday morning operation to regain control of the center, force was used on "a core group of detainees" who built barricades and "actively resisted" attempts to secure the compounds, including threatening to use improvised weapons, the immigration authority claimed.
According to the statement, five detainees were injured and are currently being assessed by medical professionals.
Christmas Island, a remote Australian outpost in the Indian Ocean, is located 380 kilometers (236 miles) south of Java. The majority of detainees at facility are immigrants whose visas were canceled by the Australian government.
Australia has received growing criticism from human rights advocates over its treatment of asylum seekers arriving on Australian shores.