Presumptive Republican nominee Donald Trump’s campaign is canceling a campaign event scheduled for Miami, Florida Friday afternoon, due to the shooting that resulted in the death of several law enforcement officers in Dallas, Texas late Thursday night.

“The Trump Campaign has canceled the trip to Miami, Florida today, due to the tragic events in Dallas last night. A statement from Mr. Trump will soon follow,” the campaign wrote in a press release.

Earlier Friday morning, Trump reacted to the killing of five police officers on Twitter:

Prayers and condolences to all of the families who are so thoroughly devastated by the horrors we are all watching take place in our country — Donald J. Trump (@realDonaldTrump) July 8, 2016

Five police officers were killed by snipers and several others were injured during a street protest in Dallas, Texas on Thursday night. There are three suspects in custody and one suspect is dead after a standoff.