Police in Westfield, Indiana think they have arrested those responsible for a series of

explosions that destroyed mailboxes. According to our partners in news at 21 Alive, four

18-year-olds have been arrested and charged with using an over-pressure device and

criminal mischief.

They were seen buying ingredients commonly used to make the bottle bombs used to

damage the mailboxes. Luckily, no one was injured during the explosions.