MINNEAPOLIS (AFP) — Minnesota Timberwolves coach Chris Finch said they were "heartbroken" by events unfolding in Minneapolis, where federal agents shot dead a second US citizen amid the Trump administration's mass immigration crackdown.

An emotional Finch spoke to reporters shortly before the Timberwolves took on the Golden State Warriors in Minneapolis on Sunday, a game postponed from Saturday when the city was sent reeling by the shooting death of Alex Pretti, a 37-year-old ICU nurse, less than three weeks after an immigration officer fired on Renee Good, also 37, killing her in her car.

"As an organization, we are heartbroken for what we are having to witness and endure and watch," Finch said. "We just want to extend our thoughts, prayers and concern for Mr. Pretti's family, all the loved ones, and everyone involved in such an unconscionable situation in a community that we really love."

The Timberwolves honored Pretti with a moment of silence that ended amid expletive-laced chants against ICE (US Immigration and Customs Enforcement).

Warriors coach Steve Kerr called it "one of the most bizarre, sad games I've ever been a part of" after his team trounced the Timberwolves, 111-85.

Kerr, who said he felt the home team was "suffering," has been an outspoken critic of President Donald Trump who had called the shooting of Good "shameful."

On Sunday, he said it was time for Americans to appeal to their "better angels" in a era of extremism.

"People are so angry. There should be an appeal to our better angels to look after one another and to recognize what's happening," Kerr said. 

"It's hard to decipher what's real and what's not, what's true and what's not true — people arguing over the exact same video and saying 'this happened, no, that happened.'"

Kerr said the loss of life is "the number one concern."

"When all the unrest settles down, whenever that is, those family members won't be returning home and that's devastating," said Kerr, whose university president father was shot dead in Beirut by Islamic militants in 1984.

Both coaches praised the decision to postpone the game.

"Playing basketball just didn't feel like the right thing to do," Finch said.

The NBA's Players Association issued a statement on Sunday saying players "stand in solidarity with the people in Minnesota protesting and risking their lives to demand justice."

"The fraternity of NBA players, like the United States itself, is a community enriched by its global citizens, and we refuse to let the flames of division threaten the civil liberties that are meant to protect us all."