Honolulu police say a 17-year-old boy was arrested for setting off explosive devices after a witness saw him place a device on the pavement and leave. Seconds later the device exploded.
The suspect was located in the Aiea area and identified by the witness.
A second witness also identified the suspect as exploding another device the day before at the same location.
The suspect was arrested for possession of a prohibited explosive device and released pending investigation.