GRANITE QUARRY, N.C. - Granite Quarry police are looking into a case that involves nude photos of young girls and young boys being posted on Instagram.
Officials said many of them have captions involving local schools.
Police across Rowan County are working together and with state prosecutors.
The SBI is looking into similar cases across the state.
They're investigating more than 30 accounts reported in nine different counties.
The first was reported in Wake County when an 18-year-old girl told her mother nude pictures of her popped up on Instagram.
Authorities are working with Facebook, which owns Instagram, for user information.
Read our past coverage:
Police investigate case of nude photos of young girls, boys on Instagram
11-year-old Catawba Co. girl vanishes after getting off school bus
Court records: Keith Scott served 7-year prison sentence for assault
First arrest made in EpiCentre parking deck assault
Sponsored: Golf with Braylon Beam, celebrities to fight childhood cancer