The US military on Thursday said it will send 200 Marines to Florida to provide administrative and logistical support to Immigrations and Customs Enforcement (ICE).
It said the Marines are the first wave of US Northern Command's support to the immigration enforcement agency's mission.
Their roles will focus on administrative and logistical tasks and they are specifically prohibited from direct contact with individuals in ICE custody or involvement in any aspect of the custody chain.
Last month the Pentagon authorised the mobilisation of up to 700 Department of Defense personnel to support ICE in Florida, Louisiana and Texas.
US President Donald Trump also deployed 700 Marines to Los Angeles last month to protect immigration agents during raids to arrest migrants illegally in the United States.