What is ICE and what powers do its agents have to use force?

BBC:

The fatal shooting of a 37-year-old woman in Minneapolis has sparked protests across the US and placed increased scrutiny on the US Immigration and Customs Enforcement agency (ICE).

ICE has made thousands of arrests since Trump returned to the White House, often in public settings.

Those actions have increasingly brought its agents into communities across the country, leading to resistance from some local residents who oppose their operations.