Transcript for Mysterious White Flags Appear Over Brooklyn Bridge
That mystery the Brooklyn Bridge happily ever caught to the bridge shortly after 9 AM. After witnesses noticed two giant white flags mounted on top were two American flags were supposed to be. And now the question is who's responsible eyewitnesses reporter Dave Evans is at what brings the details -- -- -- lay of the land where we are right now just over my right shoulder above me that -- city -- and you might be able to some of the traffic moving eastbound over the Brooklyn Bridge from Manhattan to Brooklyn and then just over my left shoulder that is one of the towers -- question this morning this is the western tower the one closest to Manhattan there was a white flag on top of the bridge early this morning on both towers it has since been taken down but the big questions right now. Who did this and why is it a prank is -- a political protests. And most important how in the world that someone get on top of the Brooklyn Bridge without anybody noticing it. Social media a little after 7 o'clock this morning but tourist noticed something off. The true American flags that usually fly atop both Brooklyn Bridge towers were -- replaced by two mysterious black slacks. Looking closer you could see they were still American flags with the stars and stripes but the red and blue was all bleached out usually -- The American flag yes -- -- on. Funds that it is time to -- undergo New London. What -- what do you think of like a 100000 troops plug and play out they shouldn't be doing and the patient and didn't. This -- -- I mean we have the respective visions of the. -- -- gets really bad. By 930 police who responded counterterrorism intelligence precinct detectives. And by 1030 police had strapped on repelling gear and walked up one suspension wire. My 11 o'clock it was all basically all over and the flags were taken down. Maybe they don't agree what America's politics. I have no idea -- on the defensive wounds or not I mean I don't think he should pain over the flag definitely net. So I guess that -- updating get rid of it. It's his -- a good thing it's a city landmark global --
This transcript has been automatically generated and may not be 100% accurate.