President Trump on Wednesday seized on the deadly truck attack in New York City to renew his calls for a crackdown on immigration and tighter security measures.

Trump said the alleged driver in Tuesday’s attack entered the country through the diversity visa lottery and demanded that Congress act “immediately” to terminate the program, which applies to people from countries with low levels of immigration to the U.S.

“Diversity lottery. Sounds nice. It’s not nice. It’s not good. It hasn’t been good. We’ve been against it,” he said during a Cabinet meeting.

The suspect, Sayfullo Saipov, is an Uzbek national who used the lottery system to enter the U.S. in 2010, according to the Department of Homeland Security (DHS).