The Maoists reportedly started firing at a vehicle, in which the tribals were travelling in, assuming that it was carrying police personnel.
The incident took place in RV Puram forest area in Visakhapatnam near the Andhra-Orissa border.
The tribals who suffered bullet injuries were taken to the hospital. They are currently undergoing treatment at KGM hospital.
The Maoists fled after spraying the bullets. Police has informed that security officials have been deployed to sanitise the area.