The FBI raided the office of a voting rights group in Ohio on Thursday, prompting immediate concerns the Trump administration is cracking down on such organizations ahead of the midterm elections.

FBI agents raided the Cleveland office of the Ohio Organizing Collaborative, a grassroots group that does voter registration work, said Prentiss Haney, a board member of the group. Agents seized computers and phones, he said, and also showed up at homes of people affiliated with the group throughout the state and interviewed them.

“This raid is a full-on coordinated assault weaponizing the justice department and DHS against people who are fighting for working-class voters and Black voters to make sure they have access to the ballot,” Haney said in an interview.

Federal investigators have also collected voter records in at least six Ohio counties, Reuters reported in April.