An absent-minded photographer is desperately searching for the only copy of wedding photos that he recently took and left in a backpack on the subway.

Kurt Sneddon has been posting flyers all over the underground after leaving his gray bag on a downtown B train in Manhattan on Monday.

Sneddon said on Facebook that he became “distracted and overwhelmed” and simply forgot the wedding photos on the subway train.

“The last 48 hrs have been the worst of my life,” he wrote. “I was entrusted to photograph a wedding and I’ve fu–ed up beyond measure.”

He is relying on the kindness of New Yorkers to help him retrieve the Thule brand backpack so he can return to photos to the newlyweds.