Police in California are looking for a man accused of holding down his 7-year-old son while another man tattooed the child's belly with a street gang sign.

The boy's mother reported it to Fresno authorities on Tuesday.

Police say the father, 26-year-old Enrique Gonzalez, faces six charges including mayhem, child abuse, false imprisonment, battery, participating in a criminal street gang and committing a crime for the benefit of a gang.

Police have arrested a man they say was the tattoo artist. He faces similar charges.

The dog paw insignia represents the Bulldogs, Fresno's largest criminal street gang.