Last night in the Outer Sunset, a woman was robbed by two other women who threatened her with a knife and a handgun.

The incident occurred near 26th Avenue and Noriega Street at 8:55pm when the victim, a 37-year-old woman, was approached from behind and grabbed by one of two female suspects, one of whom was described as between 18 and 20 years old.

While one of the suspects held a knife to the victim, the other brandished a gun and demanded her property. After the victim complied, both suspects fled on foot. 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.

Here’s why we usually don’t include suspect descriptions in crime reports.