NEWARK, N.J. (AP) — A computer glitch at the company that operates most of the state’s red-light cameras has led to about 17,000 tickets being voided, the judiciary office said Thursday.

Last week, the state sent letters to 17 towns that have contracts with American Traffic Solutions notifying them of the problem. ATS, based in Tempe, Arizona, had notified the state about the glitch on Aug. 10, state judiciary spokeswoman Winnie Comfort said.