Police have released new information on a female PKK terrorist who was involved in an attack that left 46 people dead on Dec. 10 outside of the Beşiktaş football club's stadium in Istanbul.

According to police, the woman staked out the scene of the attack for five hours along with two accomplices, Sadri Kılınç and Burak Yavuz, who later detonated themselves in simultaneous suicide bombings.

The unidentified woman allegedly had contact with Tufan Beyhan, a man accused of providing the getaway vehicle in the terrorist plot. Beyhan has since been arrested and faces charges of aiding and abetting a terrorist group.

Police sources reported that the woman contacted Beyhan twice before the terror attack, while CCTV footage taken from the day of the attack shows the suicide bombing suspects Kılınç and Yavuz arriving at the scene of the attack accompanied by the woman.

Istanbul police are continuing a nationwide manhunt to track down the woman, whose name has not been released.

According to statements from Beyhan's sister who spoke with Istanbul police, Beyhan met the woman two times in the three weeks leading up to the attacks, bringing her to their home where the two spoke privately behind closed doors inside the home. Beyhan's sister told law enforcement that she estimated the female PKK terrorist to be about 25 years of age, adding that her brother told the family that the two were "not lovers."

On the other hand, Beyhan's mother told police that her son, who is also accused of being involved in PKK terrorist activity in the Bağcılar district of Istanbul, had left home for one week after Qurban Bayram (Feast of the Sacrifice) last year and did not contact family members.

Police have since learned that Beyhan joined the PKK terrorist organization during that time and was in contact with high-ranking members of the PKK regarding the Beşiktaş bombing. The suspect's mother also said that her son did not have enough money to buy a car, nor does he know how to drive one. This statement has helped law enforcement further build their case concerning Beyhan's strong ties to the PKK terrorist organization.

On Dec. 10, 2016 the PKK orchestrated twin blasts directly targeting police forces outside of the Beşiktaş stadium following a soccer match. The attack, which targeted the stadium close to Maçka Park in central Istanbul, included two explosions by suicide bombers and the detonation of a car that had been packed with explosives.

One day after the attack, the PKK's suicide team and hardliner splinter group, the Kurdistan Freedom Hawks (TAK) said that two of its members died in the attacks, refusing to specify if they were suicide attackers.

The group had also vowed to release more information in the coming days.

The PKK has been designated as a terrorist organization by the U.S., EU and Turkey. Furthermore, the terrorist group is continuing its public-relations efforts against Western and European nations.

Currently, police believe that the two suicide bombers were from the PKK's headquarters in the Qandil Mountains, indicating that the woman is the suspected mastermind in the attack.