Shortly after 10pm last night, neighbors in the Upper Haight began reporting news of a loud explosion that rattled the area.
Big explosion in the Haight?????— Amy Stephenson (@losertakesall) September 1, 2016
What was up with the loud explosion near Haight and Ashbury? Went to investigate and got a cop's light shown in my face! Someone on the lam?— This SF Life Podcast (@ThisSFLife) September 1, 2016
Anyone know anything going on in the haight? heard it was a big ass explosion #SF— Cenia Munoz Gonzalez (@DigitalBerri) September 1, 2016
Explosion on Haight street... Lovely— Allie Castro (@alliec221) September 1, 2016
Tipster Ross W. confirmed the disruption:
Huge explosion around Page and Ashbury around 10:30 tonight. Cops and firefighters everywhere, but dumbfounded. No smoke or sign of explosion.
According to SFPD's Officer Giselle Talkoff, police did receive reports of "some type of explosion" around Page & Ashbury, but "officers were unable to locate any source."
She could not confirm the rumor that the noise could have been caused by an exploding M80 firecracker, as was the case with a recent scare at Zuckerberg San Francisco General Hospital.
Know more about what may have caused last night's kerfuffle? Take it to the comments.