I just immediately thought of the Iraq War testimony that somebody's relative made up to an American committee about how Iraqis were murdering babies in incubators.

https://en.wikipedia.org/wiki/Nayirah_testimony

Her story was initially corroborated by Amnesty International, a British-based global NGO, which published a report about the supposed killings and testimony from evacuees. Following the liberation of Kuwait, reporters were given access to the country. An ABC report found that "patients, including premature babies, did die, when many of Kuwait's nurses and doctors ... fled" but Iraqi troops "almost certainly had not stolen hospital incubators and left hundreds of Kuwaiti babies to die." Amnesty International USA reacted by issuing a correction, with executive director John Healey subsequently accusing the Bush administration of "opportunistic manipulation of the international human rights movement"...

On January 6, 1992, The New York Times published an op-ed piece by John MacArthur entitled "Remember Nayirah, Witness for Kuwait?" MacArthur discovered that Nayirah was the daughter of the Kuwaiti Ambassador to the U.S., Saud Nasir al-Sabah.