HOUSTON, United States

Local officials in the US state of Minnesota announced Friday they are launching their own investigation into the killing of an American woman in Minneapolis by an Immigration and Customs Enforcement (ICE) agent.

The Minnesota Attorney General’s Office (MNAGO) said in a statement that it is opening a joint investigation with the Hennepin County Attorney's Office (HCAO) "to collect and preserve evidence to support investigation into the killing of Renee Nicole Good in Minneapolis."

"After the FBI rescinded its cooperation ... the HCAO and MNAGO were in constant contact to determine a path forward that ensured necessary transparency for Minnesotans," the agencies said in a statement.

The deadly shooting happened Wednesday after the Trump Administration stepped up immigration raids in Minnesota.

The agent who shot Good was a member of a specially trained tactical unit within ICE, a senior Department of Homeland Security official told CBS News.

Homeland Security Secretary Kristi Noem characterized Good's actions before her killing as an "act of domestic terrorism."

US President Donald Trump claimed that Good "ran over" an officer, which led to the shooting.