Hillary Clinton's remarks follow the postponement of a Donald Trump rally in Chicago due to safety concerns. | AP Photo Clinton slams Trump's 'political arson'

Hillary Clinton on Saturday called Donald Trump's rhetoric "political arson" in response to scenes of unrest following the GOP front-runner's cancellation of a rally in Chicago.

"… The ugly, divisive rhetoric we are hearing from Donald Trump and the encouragement of violence and aggression is wrong, and it's dangerous," the Democratic presidential candidate said. "If you play with matches, you're going to start a fire you can't control. That's not leadership. That's political arson."


Clinton was speaking to about 100 campaign volunteers during a stop at the O'Fallon Park Recreation Complex in St. Louis. Missouri holds its presidential primary next week.

The comments come after Trump's campaign postponed a planned rally Friday night at the University of Illinois at Chicago amid safety concerns. Chaotic scenes broke out between protesters and the candidate's supporters.

Clinton called on her supporters to "roll up our sleeves and get to work and to stand against this tide of bullying and bigotry and blustering that is going on in our political system."

In remarks at a DNC fundraiser on Saturday, President Barack Obama referenced the protests in his home city.

Politicians should be focused on making America better and not encouraging "violence against other Americans or excluding them. We're a better country than that," he said.