INDIANAPOLIS -- The investigation of voter registration fraud in Indiana expanded Thursday from nine counties to a total of 56.

Indiana State Police began looking into voter fraud in Hendricks and Marion Counties in August 2016.

Detectives say a group by the name of Indiana Voter Registration Project turned in forged voter registration applications.

They say the group was altering already registered voter's information, changing the voter's address to an address not associated with the voter and without the voter's knowledge.

On Oct. 4, Allen, Delaware, Hamilton, Hancock, Johnson, Lake and Madison Counties were added to the voter fraud investigation.

As part of the investigation, the business offices of Indiana Voter Registration Project in the 2400 block of N. Meridian were raided.

In response to the raid, Patriot Majority USA President Craig Varoga said:

“After all is said and done, when this partisan investigation finds no wrongdoing by the organization, Connie Lawson and the Indiana State Police will have prevented 45,000 African Americans from voting in this year’s elections. That is why today we reported their outrageous actions to the Department of Justice."

State police say they aren't able to tell at this point how many registered voters may have victims of voter fraud. You may not know you've been affected until you go to vote and realize your information has been altered.

If you are affected, you'll need to cast a provisional ballot.

To make sure you haven't been affected by voter registration fraud, confirm your registration at indianavoters.in.gov.

If there is inaccurate information, call the Indiana State Police Voter Registration Application Fraud tip line at 888-603-3147.

The Secretary of State's Office is also available to help voters from 8 a.m. to 4:30 p.m. EST on regular business days by calling 866-461-8683.

The voter registration deadline in Indiana is Oct. 11.

While all Indiana voters should confirm their voter registration information, it's especially important for voters who live in the counties being investigated:

1. Adams

2. Allen

3. Bartholomew

4. Benton

5. Blackford

6. Boone

7. Brown

8. Carroll

9. Cass

10. Clark

11. Clay

12. Clinton

13. Daviess

14. Dearborn

15. Decatur

16. DeKalb

17. Delaware

18. Dubois

19. Elkhart

20. Fayette

21. Floyd

22. Franklin

23. Fulton

24. Gibson

25. Grant

26. Greene

27. Hamilton

28. Hancock

29. Harrison

30. Hendricks

31. Henry

32. Howard

33. Huntington

34. Jackson

35. Jasper

36. Jay

37. Jefferson

38. Jennings

39. Johnson

40. Knox

41. Kosciusko

42. LaGrange

43. Lake

44. LaPorte

45. Lawrence

46. Madison

47. Marion

48. Marshall

49. Martin

50. Miami

51. Monroe

52. Montgomery

53. Morgan

54. Newton

55. Noble

56. Owen