The brazen gunpoint robbery of a Mission District bar Friday might be one in a series, a local liquor industry insider says, but so far police haven't been able to catch the suspects.

According to the San Francisco Police Department, two armed men barged into a bar located at 17th and Folsom Streets at 10:38 Friday evening.

The Rite Spot, a longstanding Mission watering hole, is located at that intersection. Citing SFPD policy, a spokesperson declined to specifically name the business at the site of the incident.

One of Friday night's raiders, police say, held the bar's "patrons at gunpoint." The second man "attempt"ed to rob the bar's clientele and "unsuccessfully" tried to plunder the cash register.

The second man then went into the back room of the bar and stole an undisclosed amount of cash, police say. Both then fled in an "unknown direction" and remain at large.

According to Brian MacGregor, a longtime San Francisco bartender who's also married to Carey Suckow, the owner of Mission standby Doc’s Clock, Friday's robbery wasn't a solitary incident.

Hey Missio,bars are being robbed by two large men over 6'4" with masks, get away car waiting outside. Robbery times are between 11pm-1am. — Brian MacGregor (@themacgregor) April 18, 2016

An SFPD spokesperson wasn't immediately aware of crimes similar to Friday's in the area, but noted that a Noe Valley establishment had recently been robbed twice.

The BAR (On Dolores), which is located at 1600 Dolores Street at 29th Street, was robbed on March 27 at 10:45 p.m. by two armed men who "entered [the] establishment brandishing handguns and demanded that the bartender hand over the money," according to an SFPD report.

Though the bartender complied, there was a scuffle in which a 53-year-old man suffered a non-life-threatening laceration to his head. Both suspects fled the scene on foot, police say.

The suspects, both of whom were clad in ski masks, got away with about $3000 in cash, SF Bay reported at the time.

Just a few days later the bar was robbed again, this time by "three armed suspects in their early- to mid-20s." This time, no one was injured as the bandits raided "both the register and a tip jar."

A police spokesperson couldn't comment on if investigators believe that there is a connection between these three robberies, but urged anyone with information on any of the crimes to contact SFPD's anonymous tip line at 415-575-4444, or to text a tip to TIP411 with "SFPD" at the beginning of the message.