The American Civil Liberties Union has issued a travel advisory for “immigrants and people of color to use extreme caution” in Florida because of a pending immigration bill the state legislature is considering that would ban so-called sanctuary cities.

The Florida Legislature has advanced legislation that would require local law enforcement to work with U.S. Immigration and Customs Enforcement in detaining undocumented immigrants.

Both of Florida’s legislative chambers are expected to consider the measure in the coming weeks

The ACLU is opposed to the bill, which they have argued would “trample on the civil rights and liberties of actual or perceived immigrants.”

In a tweet Monday, the organization sent out the travel warning.

“We and partners have issued a travel advisory urging immigrants and people of color to use extreme caution when traveling in Florida,” the ACLU tweeted. “The state is on the verge of passing a draconian anti-immigrant bill which will endanger our communities.”

Florida’s undocumented immigrant population is estimated to be greater than 700,000.

Gov. Ron DeSantis, a Republican, has urged law enforcement officials in cities and counties to cooperate with immigration officials.

[Opinion: Florida Hispanics want more immigration enforcement, but it's not their priority. Family is]