Donald Trump's Republican rivals for the White House condemned protests that shut down his planned Chicago rally on Friday, but said his incendiary speech was partly to blame.
In statements to the press, candidates Ted Cruz and Marco Rubio both called the incident "sad" and said the people who chanted anti-Trump slogans and scuffled with Trump's fans inside a stadium at the University of Illinois should have respected the candidate and let the rally happen.
But they added that Trump shared some responsibility.
Trump has drawn fervent support as well as harsh criticism for his calls to build a wall along the U.S.-Mexico border and to impose a temporary ban on Muslims entering the country.
His rallies often attract small groups of protesters, but Friday's was the first at which there may have been as many protesters as supporters.
The two sides shouted at each other until a Trump campaign staffer appeared and announced the event would be put off until an unspecified date for security reasons. The cancellation followed a an appearance by Trump in St. Louis, Missouri earlier on Friday during which protests forced the front-runner to halt his speech repeatedly.
"Go home to mommy," Trump said as security personnel ejected one of the protesters in St. Louis.