A 21-YEAR-OLD woman was allegedly raped by three unidentified persons, who also tied her male friend to a tree and assaulted him at an isolated place on the outskirts of Pune city, police said on Friday. The horrific incident took place in the Bopdev Ghar area at around 11 pm on Thursday and a day later police released sketches of two of the suspects as they intensified efforts to trace the culprits and sought help of citizens to nab them. According to the Kondhwa police, under whose jurisdiction the crime occurred, the woman had gone to the locality with a male friend. “As per preliminary details, the woman and her male friend had gone to the Bopdev Ghar area where three unidentified persons allegedly raped her,” said Ranjan Kumar Sharma, Additional Commissioner of Police. He said the trio first tied the woman’s male friend to a tree at the crime scene and then took turns to rape her. Ten police teams have been formed to trace the accused.