People attending the Conservative Political Action Conference could be seen waving small Russian flags emblazoned with the word “Trump” during President Trump’s speech.

It appeared to be a prank. CPAC workers quickly began to collect the flags after they were being waved.

Snapchat’s Peter Hamby captured some of the action in a tweet:

Crowd at CPAC waving these little pro-Trump flags that look exactly like the Russian flag. Staffers quickly come around to confiscate them. pic.twitter.com/YhPpkwFCNc — Peter Hamby (@PeterHamby) February 24, 2017

Someone handed out Trump Russian flags on the #CPAC2017 floor before Trump's speech pic.twitter.com/uf1ADMt6ZL — Taylor Lorenz (@TaylorLorenz) February 24, 2017

Organizers told some attendees that anyone caught waving or holding the flags would be thrown out.

An attendee from San Francisco told a reporter from The Hill that he didn't want to give up the flag, which he had sought to keep as a souvenir. The man also said that no one had a sense of humor any more.

Someone handed out Trump Russian flags on the #CPAC2017 floor before Trump's speech pic.twitter.com/uf1ADMt6ZL — Taylor Lorenz (@TaylorLorenz) February 24, 2017

Trump’s ties to Russia have dominated the news during his nascent presidency.

The intelligence community has concluded that Russia interfered in the presidential election to help Trump, and Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE’s Democratic campaign has blamed Moscow for her loss.

Just last week, Trump’s national security adviser, Michael Flynn, resigned after leaks about his own discussions with Russian officials.