Alex Pretti, 37, was shot and killed on Jan. 24 in Minneapolis -- the second shooting of a U.S. citizen last month by federal agents in the city.
The shooting of Pretti, an ICU nurse, ratcheted up tensions, as protesters clashed in the streets with law enforcement in the aftermath of the shooting.
The incident followed the fatal shooting of Renee Good, a 37-year-old mother, on Jan. 7.
While Border Czar Tom Homan said there would be a "draw down" of agents, he added that federal personnel providing security will not leave the city until the federal government sees a change in the "lawlessness" impeding ICE and Border Patrol agents.
"Stop impeding, stop violating the law because we will arrest you," he said Wednesday morning.
Border Czar Tom Homan said Wednesday the federal government will "draw down" 700 agents in the Minnesota area "effective immediately."
He also said that CBP and ICE agents in Minnesota are aligned.
"Any large operation I've ever been apart of is one chain of command and that's where we're moving forward," he said.
-ABC News' Luke Barr
The White House's border czar, Tom Homan, is scheduled to hold a press conference on Wednesday morning in Minneapolis, Minnesota.
Homan is expected to speak at 8 a.m. CT, according to the White House.
The border czar was dispatched early last week to Minnesota to attempt to find a solution to the tensions that have roiled the state in the wake of two fatal shootings involving federal agents.
Agents from Immigration and Customs Enforcement and Customs and Border Protection have been carrying out Operation Metro Surge in the state.
Homan said last Thursday that "massive changes" were expected, saying he had reached agreements with local and state officials that would eventually "draw down" the number of federal agents in the city.
"We will conduct targeted enforcement operations -- targeted; what we've done for decades," Homan said last week. "When we hit the streets, we know exactly who we're looking for, have a good idea of where we may find them."
The two brothers of Renee Good, the 37-year-old Minneapolis woman killed by a federal immigration officer in January, spoke on Capitol Hill Tuesday, telling lawmakers of the effect their sister's death had on their family.
"The deep distress our family feels because of Renee's loss in such a violent and unnecessary way is complicated by feelings of disbelief, distress and desperation for change," said one brother, Luke Ganger.
Luke and Brent Ganger's remarks were part of a special public forum organized by Sen. Richard Blumenthal, D-Conn., and Rep. Robert Garcia of D-Calif., as part of an inquiry into the tactics and use of force by Department of Homeland Security agents.
MORE | 'Deep distress': Renee Good's brothers testify on Capitol Hill after deadly Minneapolis shooting
