Derek Chauvin guilty on all counts in death of George Floyd

Police departments across the U.S. are bracing for potential protests after the Derek Chauvin verdict.

Thousands of National Guard soldiers have been deployed throughout Minneapolis, where George Floyd was killed and Chauvin, now a former Minneapolis police officer, waits to learn his fate from the jury, who are on their second day of deliberations.

A state of emergency has been declared in the region.

Minnesota Gov. Tim Walz said Monday, "I am grateful to our colleagues in Ohio and Nebraska for their willingness to provide assistance and relief to our state troopers and law enforcement officers as they continue to work to keep the peace in our communities."

In Washington, D.C., 250 National Guard troops have been activated. A guard spokesperson said those troops are only "preparing to support" the local police department, so their presence won't be seen unless they're needed by police.

The Chicago Police Department said last week that it was also deploying extra resources throughout the city.

The police department said "days off have been cancelled for members of the Community Safety Team, Critical Incident Response Team, Summer Mobile Patrol, all Area Detectives and additional specialized teams."

In Los Angeles, Police Chief Michel Moore said Monday that "added resources are already in play," the Los Angeles Times reported.

The LAPD said it's retrained thousands of officers in crowd-control tactics, the LA Times reported.

-ABC News' Emily Shapiro and Darren Reynolds

The jury in the Derek Chauvin murder trial returned to the courthouse at 9 a.m. ET on Tuesday morning to resume their deliberations.

After hearing closing arguments from both prosecutors and Chauvin's defense attorney on Monday, the jury deliberated for four hours without reaching a verdict.

The jury in the trial of Derek Chauvin adjourned without reaching a verdict on Monday night after deliberating for four hours.

The jurors began to deliberate for the first time at 4 p.m. CT on Monday, following closing arguments from the prosecution and the defense. They adjourned at 8 p.m. CT, according to an update from the Minnesota Judicial Branch.

The jurors will remain sequestered in a hotel each night until they arrive at a verdict or determine that they cannot all agree on a verdict.

ABC News' Whitney Lloyd contributed to this report.

Hundreds of high school students in Roseville, Minnesota joined a student walkout as deliberations continue in the Chauvin trial.

The Roseville Area High School students gathered outside the school just before 1 p.m. local time and marched to the Roseville Police Department, about a mile away. They wore black in solidarity for Floyd and the Black community.