A woman has distributed posters of her missing daughter to passengers at Beijing's subway stations for six months, the Legal Mirror reported Thursday.

The woman, surnamed Zhan, said her 11-year-old daughter never returned after she went to an outdoor toilet at night on July 11, 2012. She and her husband knelt down at Songjiazhuang, Fengtai district, begging for information about their missing daughter. 

The couple said they don't know how to face her daughter's heartbroken grandparents, so they will stay in Beijing during the Spring Festival holiday.