WASHINGTON (AP) — Federal authorities have set up checkpoints around the nation’s capital, sometimes asking people for their immigration status and detaining them, as President Donald Trump’s crackdown ensnares more residents each day.

Trump claimed that a crime crisis required his Republican administration’s intervention in the Democratic-led city this month, brushing aside statistics that showed the problem was already waning. However, immigration enforcement appears to be a priority, as more than a third of people arrested in the last two weeks were in the country illegally, according to the White House.

Hundreds of federal agents and National Guard soldiers have surged into Washington, leaving some residents on edge and creating tense confrontations in the streets.

A daycare was partially closed on Thursday when staff became afraid to go to work because they heard about federal agents nearby. An administrator asked parents to keep their children at home if possible.

Other day cares have stopped taking kids on daily walks because of fears about encountering law enforcement.

The White House said there have been 630 arrests, including 251 people who are in the country illegally, since Aug. 7, when Trump began surging federal agents into the city. Trump has been ratcheting up the pressure since then, seizing control of the D.C. police department on Aug. 11 and deploying more National Guard troops, mostly from Republican-led states.

On Thursday night, Trump headed out on a patrol in the latest show of force from the White House. Earlier this week, Vice President JD Vance and Defense Secretary Pete Hegseth visited some of the troops at Union Station, showing their support while protestors chanted “free D.C.”