BOSTON — Yellow police tape flapped in the spring wind across Friend Street late Tuesday night as Boston detectives picked numbered evidence markers out of the pavement outside Sullivan's Tap, the corner-bar dive that has anchored the foot of TD Garden for decades.

Shots rang out shortly before 11 p.m. near the corner of Friend and Causeway streets — directly outside Sullivan's Tap — sending the bar's patrons diving for the floor and bolting for the back of the room as the rounds cracked outside.

Moments later, the witness said, two people pulled hoodies up over their heads and ran.

Down the block at Sullivan's Tap, the dive bar staff posted surveillance video to Instagram showing customers scattering off bar stools and bolting for the back of the room as the rounds cracked outside. The caption: "Everyone is safe at Sullys after shots were fired on friend st."

Stray rounds shattered the front door of the Hotel Indigo at 280 Friend Street next door — the same boutique hotel where a New Hampshire man was convicted of second-degree murder for a fatal 2021 stabbing — and drilled through the rear windshield of a black SUV parked at the curb. By the time officers arrived, the shooters were gone.

Boston EMS confirmed no one was transported from the scene. Boston police said they recovered ballistic evidence and are investigating.

Detectives counted out markers two, three, four, six and eight clustered in the middle of the street near the strike zone.

The scene sat directly beneath a lighted "Beacon Hill" sign across the street and the rainbow-lit facade of a neighboring building — a corner that on most nights hums with Celtics fans, Orange Line commuters, and tourists checking into the Indigo.

No suspect descriptions beyond the hoodies have been released. No arrests had been made as of early Wednesday.

This is a developing story.