Donald Trump is warning that the tensions between police and the nation’s black community that led to a deadly police shooting in Dallas last week “might be just the beginning for this summer.”

“We are in a divided nation,” the presumed Republican presidential nominee told the Associated Press. “I looked two nights ago and you were having trouble in 11 different cities, big, big trouble. And the press actually plays it down. I mean, you were having big, big trouble in many cities. And I think that might be just the beginning for this summer.”