Brazilian police say they are investigating whether the 16-year-old girlfriend of a football player jumped to her death or was pushed from the 15th floor window of his apartment.

Police investigator Elisabete Sato tells reporters the death of Flavia Anay de Lima is being treated as suspicious until all questions are answered.

She says that Portuguesa striker Rafael Silva told police his girlfriend jumped to her death on Sunday following a violent argument. She says police found blood stains and broken furniture in the 20-year-old player's apartment.

Portuguesa, which plays in the second tier of Brazilian football, did not return calls for comment.