TPM Livewire

Mysterious White Flags Fly Atop The Brooklyn Bridge (PHOTOS)

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ABC News

Police said it wasn't clear when or by whom the flags were placed on the bridge, according to TV station WCBS. DNAinfo, a website covering New York City, reported that the NYPD's counterterrorism division was among those reviewing surveillance footage from the bridge.

Both flags were taken down by roughly 11:30 a.m. ET, according to Gothamist.

This post has been updated.