Former President Donald Trump on Friday excoriated Vice President Kamala Harris over her handling of the southern border as she visited it in Arizona the same day.

"She's getting killed on the border," Trump said during a rally in Walker, Mich. "That she went to the border, this was a bad day, because somebody just released the numbers. They came out through ICE [Immigration and Customs Enforcement]."

"According to this brand new data never seen before, over 13,099 convicted murderers have crossed the border free to roam and kill in our country. These are convicted murders," Trump added. "These are people that were just been talking about this for three years."

Trump's stats come from the House Homeland Security Committee, which released the ICE data on Friday. The more than 13,000 convicted killers are part of the agency's "non-detained docket" which lists the illegal aliens ICE must monitor while in the U.S. interior, the Washington Times reported.

"More than 13,000 convicted murderers have been let out of jail, and they're roaming our streets, our country, all over and every state is a border state. You know what that means, right? Every state, because they fly them in," Trump went on.

"And these are serious, serious criminals coming out of jails, mostly from jails, a lot of gang members. They take their gangs off the street, like in Caracas, Venezuela. The criminals have all been brought to the United States. Their crime rate is down in Caracas," he insisted.

Harris is expected to speak later on Friday evening in Arizona.