On the campaign trail, Donald Trump was crystal clear: "On day one, I will launch the largest deportation programme of criminals in the history of America."
That promise, opinion polls suggested, proved broadly popular with the American people, including with legal immigrants, who felt that too many people were coming into the country the "wrong way".
Since taking office, the president has widened the scope of his mission, targeting not just criminals, but migrant workers, some student activists and even tourists with visa issues.
For almost five months, these moves met little resistance. But now parts of Los Angeles have erupted in protests after immigrations officers intensified their raids at workplaces.
So who are the migrants caught up in these raids? And who else has the administration targeted?
Here's a look at some of the people who have already been detained.
Criminals and 'collateral' arrests
Since assuming office, the president has touted plummeting numbers of border crossings and record arrests under his administration.
About 51,000 undocumented migrants were in Immigrations and Customs Enforcement (ICE) detention as of early June – the highest on record since September 2019.
While accurate and up-to-date figures for the total number of immigration detentions since 20 January are not publicly available, White House officials have said they hope ICE can scale up to 3,000 arrests a day, from 660-or-so during the first 100 days of Trump's presidency.
Initially, US officials insisted that the operations were "targeted" at criminals and potential public safety threats.
But a significant number of undocumented migrants detained by the Trump administration have otherwise clean records, according to one data tracker.
The Transactional Records Access Clearinghouse – a project from Syracuse University that compiles immigration figures – estimates that of the 51,302 people in ICE detention facilities as of 1 June, about 44% had no criminal record aside from entering the US without permission.
The unrest in Los Angeles was sparked by a series of immigration arrests that netted a total of 118 people, which the Department of Homeland Security (DHS) said included five gang members.
ICE has characterised those arrested in LA as "the worst of the worst". The agency identified a handful of people with criminal histories, including drug trafficking, assault, cruelty to children, domestic violence, robbery and alien smuggling.
How many have criminal histories, however, is unclear.
The parents of a 23-year-old undocumented migrant, a member of Mexico's indigenous Zapotec community, told the Washington Post their son, who they said had no criminal history, was detained outside a clothing store. The BBC cannot independently confirm the details of this case.
Border tsar Tom Homan has justified these arrests as "collateral" damage, arguing that agents cannot legally justify encountering undocumented immigrants and not detaining them.
