A shooting near the Mission District South Van Ness Avenue and 16th Street claimed the life of a man and woman Sunday evening, sending San Francisco's tally of 2016 homicides to 57.

According to San Francisco Police Department spokesperson Officer Giselle Talkoff, the gunfire was reported at 8:46 Monday evening. When police arrived, they found a woman in her 20s-30s dead of what appears on initial investigation to be gunshot wounds.

A second victim, a man of similar age, was transported to San Francisco General Hospital. He was pronounced dead on arrival, Talkoff says.

Citing the shooting's scenes proximity to an homeless encampment, ABC 7 reports that "a person who lives nearby says the victims had been living on the street." As of publication time, neither victim had been publicly identified by the San Francisco Medical Examiner's office.

"As of midnight," Mission Local reports, "the woman still lay draped under a tarp on 16th Street. Police had cordoned off the area on 16th Street between the 76 gas station on the corner and the Mission Neighborhood Health Center on Shotwell Street."

Mission Local reports that at 10:04 another shooting was reported nearby, this one at 14th and Valencia Streets. As of Monday night, Talkoff says that it was unknown if the two crimes were related. In that case, the male victim received non-life-threatening injuries, and was treated at the scene.

KRON 4 reports that police say that they have "no leads on suspects or motives" in the shooting, and as of Monday morning no arrests had been made in the case. Talktoff tells Mission Local that "there was no immediate threat to public safety" as a result of the violence, and that police are "'out and about' in the area."

These slayings follow last Friday's fatal shooting of SF resident Terrence Briggs, and bring the city's homicide count for the year to 57. There were 52 total homicides in SF at the end of 2015, 45 homicides in 2014, 48 in 2013, 68 in 2012, and 50 in 2011.

Related: Fatal Weekend Shooting Takes SF's 2016 Homicide Count To 55