Dikko affair
The Dikko affair was a Nigerian attempt to kidnap Umaru Dikko, a former Nigerian government minister living in the United Kingdom, in 1984, and secretly transport him back to Nigeria in a diplomatic bag. The kidnapping was successful, but was witnessed by Dikko's secretary, who notified the authorities. The scheme unraveled at the airport due to faulty documentation—which was supposed to block inspection of the "bag" (actually a large crate)—and Dikko was rescued. The political fallout seriously damaged relations between Nigeria and the United Kingdom for years.