A 30-year-old woman was riding a Muni bus yesterday at 4:50pm near Kearny and Market Streets when four women between the ages of 18 and 21 “started harassing her,” according to police.

When the woman attempted to call police on her cellphone after she was surrounded, they “started punching her and one took her phone,” police reported. All four suspects then fled the scene.

The victim was treated for non-life threatening injuries; no arrests have been made in the case.

Anyone who has information about this incident is encouraged to contact SFPD via the department's anonymous tip line at 415-575-4444, or text TIP411 with "SFPD" at the start of the message.