On Sunday, January 27, 2002, the 28-year-old Palestinian suicide bomber Wafa Idris, who worked for the Palestinian Red Crescent in Ramallah, managed to pass through the Qalandiya checkpoint while she was driving a Red Crescent ambulance and dressed in the organization's uniform, while the explosive device was hidden in the ambulance.

Although the original plan was that she would pass the explosive device to a designated person in Israel, Idris eventually decided to blow up the explosive device by herself, and as a result she updated her operative Abu Talal of her decision using her cell phone.

[1] A few days later the Al-Aqsa Martyrs Brigade claimed responsibility for the attack and identified the bomber as Wafa Idris.

[3] According to her relatives, Idris served on the Am'ari refugee camp's women's committee during the first intifada, where she assisted in food distribution at times of curfew, provided social support and helped prisoners' families.

[3] Her husband divorced her and she moved back to live with her mother, a brother and his wife and five children.