Authorities say a central Iowa woman’s wig may’ve saved her life. Des Moines police say the local woman was walking in a residential area on the city’s northeast side early Monday when she was shot in the head by someone in a passing car.

Twenty-year-old Keyanna Parker was rushed to the hospital for treatment. Police say the bullet just grazed her skull as it apparently hit what’s described as a cosmetic hair piece. Investigators say the hair piece may’ve actually prevented a more serious injury. The motive in the shooting is unclear. No arrests have been made.