Donald Trump responded to the deadly attack in New York in typical fashion on Tuesday, via Twitter.

Trump, whom the White House previously said was being briefed on the situation by chief of staff John Kelly, wrote: “In NYC, looks like another attack by a very sick and deranged person. Law enforcement is following this closely. NOT IN THE U.S.A.!”

The tweet came roughly 30 minutes after first lady Melania Trump responded to the attack on Twitter by saying: “My heart breaks for #NYC today. Thoughts & prayers as we monitor the situation.”

Trump later tweeted: “We must not allow ISIS to return, or enter, our country after defeating them in the Middle East and elsewhere. Enough!” The suspect was identified by US media as Sayfullo Saipov, an Uzbek national who entered the United States in 2010. Although there is an Isis presence in Uzbekistan, it is not one of the countries subject to Trump’s controversial travel ban.

Roughly 90 minutes after Trump’s first tweet on the attack, he expressed his condolences to the victims. “My thoughts, condolences and…