Police investigate bizarre sign that calls for Muslims to wear identity jacket

The NYPD's Hate Crime Task Force is investigating a potential ant-Muslim harassment case after an outrageous sign was discovered on the Upper East Side.

Police are looking for the suspect who hung the sign that read, "Muslims must wear identity jackets at all times," and placed a yellow jacket next to it.

The sign was found near the ambassador of Yemen's residence.

Police have canvassed the area with signs asking for any help identifying who put that sign there.