Several news reports claim the Corinthians striker was involved in an incident which saw Adriane Cirilo dos Pintos shot in the hand in the early hours of Friday morning.
The 20-year-old woman was said to have been sat in a car with Adriano following a party when the shooting occurred and was taken to the Barra D'Or hospital and given emergency attention. She has accused Adriano of playing with a .40-caliber pistol in the back seat of the vehicle which resulted in the gun going off and injuring her.
However, Adriano denies her version of events.
"I was in the front seat; the shooting was done in the back seat," he was quoted by Globoesporte as having said.
The woman is in stable condition at the hospital but could need surgery to repair a fracture in her left hand.
Corinthians have not commented on the incident while Adriano has reportedly refused to give evidence at the police station so far.
The Brazilian striker moved to Corinthians after his contract with Roma was terminated earlier in the year.