UPDATE: 8 December 2017
Following further information from the public, one of the 15-year-old boys has been arrested charged with one count of manufacture explosives, one count of causing environmental nuisance, one count of theft and four counts of property damage.
Police are alleging the pair have been damaging letterboxes and signs throughout Port Pirie.
The arrested youth has been bailed to appear in the Port Pirie Youth Court on 7 February.
The other youth was further reported for an additional count of manufacturing explosives and causing environmental nuisance and four counts of property damage.
He will be summonsed to appear in the Port Pirie Youth Court at a later date.
Original story: 7 December 2017
Two 15-year-old boys from Port Pirie South and Risdon Park South have both been reported for manufacturing explosives and causing environmental nuisance after police received reports of loud explosions in the Risdon Park area.
After following investigations, police identified two youths who were allegedly manufacturing and detonating the explosives in public areas and close to their home addresses.
Police are considering the incident as minor in nature but believe the potential for serious injury to the youths and members of the public is significant.
Anyone who suspects an explosion has occurred is asked to call the Police Assistance Line on 131 444.
If you have information about the manufacture of explosives please call Crime Stoppers on 1800 333 000.