For weeks, mystery has swirled around who replaced the American flags atop the Brooklyn Bridge with bleached white ones. Some speculated it was the work of anarchists or people trying to expose inadequate security.

Now, two German artists have come forward to claim responsibility for last month's stunt. The pair released a video to prove their claim.

They explained that they did it as a tribute to the German engineer who designed the bridge and the date of their stunt coincided with the day of his death.

Read more below from the New York Post and watch the report from Fox and Friends above.

Mischa Leinkauf and Matthias Wermke said they simply wanted to “show the beauty of public space” and provided close-up footage of one of the flags flying over the bridge at the time, according to the New York Times.

“We saw the bridge, which was designed by a German trained in Berlin who came to America because it was the place to fulfill his dreams, as the most beautiful expression of a great public space … That beauty was what we were trying to capture,” Leinkauf said.

Leinkauf was referring to German-born engineer John Roebling, who died July 22, 1869.

The flags were flown on the bridge July 22.

The pair didn’t mean to embarrass the NYPD or commit terrorism, he claimed.

“From our Berlin background, we were a little surprised that it got the reaction it did. We really didn’t intend to embarrass the police,” Leinkauf said.

Stephen Davis, the NYPD’s chief spokesman, said, “We have some leads we’re following up on … The police commissioner feels optimistic that within a reasonable amount of time, we may be able to make some arrests.”