[Videos below.] President Donald Trump’s State of the Union address Tuesday night was marked by sharp confrontations with Democratic lawmakers, as tensions flared over his comments on immigration and allegations of fraud.

As the president spoke about what he described as a fraud investigation involving members of the Somali community in Minnesota and broader concerns about illegal immigration, Democratic members of Congress interrupted with shouts from the chamber.

Trump fired back at his critics, declaring that Democrats should be “ashamed.”

‘You should be ashamed!” Rep. Ilhan Omar, D-Minn., could be seen shouting back at the president.

“Liar!” Rep. Rashida Tlaib, D-Mich., yelled at one point.

As the address continued, both Tlaib and Omar grew increasingly vocal in their objections, repeatedly interrupting Trump’s remarks.

“You have killed Americans!” Omar and Tlaib yelled.

Rep. Sarah McBride, D-Del., was also seen calling out toward the president during the speech.

Meanwhile, Rep. Norma Torres, D-Calif., displayed a sign featuring photographs of Renee Nicole Good and Alex Pretti — two U.S. citizens who were killed by immigration agents in Minneapolis in January.

In early January, Trump cited an ongoing fraud investigation in Minneapolis as justification for sending approximately 3,000 immigration officers into the state.

During Tuesday’s address, Trump said “Somali pirates who ransacked Minnesota remind us that there are large parts of the world where bribery, corruption, and lawlessness are the norm, not the exception.”