A pressure cooker left by a woman on top of a box on a bench in a small park near the Manhattan Criminal Court building in New York City set off a bomb scare on Thursday. /VCG Photo

Police closed the nearby blocks and converged in lower Manhattan after they discovered a suspicious device, later identified as a pressure cooker, on the sidewalk. /VCG Photo

A woman claimed pressure cooker and took it immediately. /VCG Photo

A pressure cooker was used in a terror attack in New York City in 2016. A home-made pressure cooker filled with shrapnel went off in Chelsea neighborhood of Manhattan, New York City on September 17, 2016. /VCG Photo

The police once visited a woman living in Long Island, New York after she searched for pressure cookers and backpacks online. /VCG Photo