Spencer, IA - Mail deliveries have been suspended in two northwest Iowa counties. The Iowa Fire Marshall is investigating more than a dozen reports of damaged mailboxes, possibly caused by explosives.  A mail carrier made one of those reports, describing damage that looked like it was caused by bombs.

More than 110 miles of county roads and  1,200 mailboxes have already been inspected.

Six years ago, a string of mailbox explosions in five midwestern states prompted the U.S. Postal Service to suspend mail delivery.  A college student was arrested for those bombings.

Reported by Carrie Murphy, cmurphy@action3news.com