The Chicago Police Department said Monday it will not assist with looming deportations by U.S. Immigration and Customs Enforcement (ICE) across the Windy City, as President Trump vows to impose sweeping border security policies across the country.

President Trump made his return to the White House on Monday, and during his inauguration, laid out plans to tackle issues surrounding illegal immigration and a weakened border.

“First, I will declare a national emergency at our southern border. All illegal entry will immediately be halted, and we will begin the process of returning millions and millions of criminal aliens back to the places from which they came,” Trump said, adding that he will end catch and release and send troops to the southern border to repel what he called the "disastrous invasion of our country. “By invoking the Alien Enemies Act of 1798, I will direct our government to use the full and immense power of federal and state law enforcement to eliminate the presence of all foreign gangs and criminal networks, bringing devastating crime to U.S. soil, including our cities and inner cities.”

But despite President Trump’s vow to remove dangerous illegal immigrants and send them back to their countries, Chicago officials took a vow of their own to not comply.

Chicago police said the municipal code includes legislation that prevents them from assisting federal immigration authorities with enforcement based on immigration status. The department also noted it does not document immigration status, nor does it share the immigration status of individuals with federal authorities.

City ordinance requires a supervisor to respond to the scene if an immigration agency requests assistance with a civil immigration enforcement operation.

If the request is to assist in the enforcement of civil immigration law, the supervisor will decline the request, but if it is unrelated to civil immigration law, the supervisor will have appropriate police action taken.