The giant Pride Month Pink Triangle on Twin Pinks was reportedly defaced Tuesday afternoon, and police were called and quickly arrested a suspect who was in the act.

The iconic Pink Triangle that sits on the hill above the Castro neighborhood now for most of Pride Month — it used to be just a Pride Weekend thing — was reportedly vandalized Tuesday afternoon.

SFPD officers responded to the unit block of Christmas Tree Point at 12:30 pm Tuesday, as the department announced on X, and found a suspect "actively defacing" the pink triangle, which is made up of hundreds of pink plastic tarp panels. The suspect reportedly tried to flee on foot but was caught by officers and arrested.

SFPD officers said they also seized vandlism tools that the suspect had in his possession. Update: Hoodline has photos of the vandalism from Pink Triangle founder Patrick Carney, which appears to be in the form of black spraypaint. Carney is now considering whether to replace the damaged panels or just paint over them and replace them later.

The suspect has been identified as 19-year-old Lester Bamacajeronimo of San Francisco, and he's been booked on suspicion of vandalism and could face other charges.

"This vandalism is unacceptable in our city and the San Francisco Police Department condemns this act," the SFPD said in a statement. "The Pink Triangle is a powerful symbol of our city's commitment to supporting LGBT rights."

Mayor Daniel Lurie also issued a statement saying, "This hateful act of vandalism does not reflect San Francisco’s values and will not be tolerated."

As Hoodline reported prior to this year's installation on June 7, this is the 30th anniversary of the Pink Triangle's first installation on Twin Peaks. While it became an illuminated display during the pandemic, it is back to being a non-electrified, daytime display, made up of 175 pink tarps and held down with 5,000 steel spikes. It measures over 200 feet from top to bottom and can be seen from 20 miles away.

Photo by Steven Bracco/Hoodline