As the Women’s March activists continued their second day of demonstrations around the world Sunday, thousands attended a massive “Power to the Polls” event in Las Vegas, where the anti-Trump activists were holding a voter registration drive.

One Twitter user, Laura Loomer, a former Project Veritas operative, posted a concern about how many illegal immigrants registered to vote at the event. She wrote, “I told them I live in Canada but want to register to vote in #Nevada for the midterms. Several workers gave me this card & told me to register online today! WOW!”

Earlier Loomer had tweeted a warning to ICE, “[email protected] please make sure you have officials on the ground @ the Sam Boyd Stadium in #LasVegas today. Sources on the ground have informed me that @lsarsour & other #WomensMarch organizers in Nevada will be transporting illegal immigrants to register to vote today!”

Women’s March organizer and Muslim activist Linda Sarsour, one of the main speakers at the event, warned that they were coming to other states as well. CNN reporter Sara Sidner tweeted that Sarsour told the crowd, “”Get ready for us Lone Star State we’re coming to Texas, get ready for us we’re coming to Pennsylvania, get ready we’re coming to Ohio.”

Also in attendance at the Las Vegas event were members of the #MuslimWomenMarch.