RALEIGH, N.C. — Former state Rep. Ty Harrell personally repaid his campaign $650, according to newly filed reports with the State Board of Elections.

Harrell, a Wake County Democrat, stepped down in September, saying personal difficulties and questions about his campaign spending would hinder his ability to represent voters in District 41.

The National Conference of State Legislators reimbursed Harrell's campaign more than $750, according to recent filings. It's not clear why that reimbursement was made.

Harrell is under investigation for dozens of questionable expenses on his campaign spending reports from 2008.

Harrell has denied he used campaign money for personal use.

Under state law, campaign money can be used only for campaign-related expenses. Money can't be spent for personal use.