SAN LEANDRO (CBS SF) — San Leandro police are asking for the public’s help to find a man who allegedly sexually assaulted a young girl in the bathroom of an apartment complex.

Police say the man sexually assaulted the pre-adolescent girl in the women’s bathroom of the pool area while she was with her family at the Lakeside Village Apartment Complex.

Police are trying to find out how the suspect entered a locked area of the complex. They believe he may have been visiting a resident, or followed someone in who had a key.