After the Nigerian government eliminated fuel subsidies on January 1st, the country's main labor unions have threatened a strike that will shut down the country. The end of the subsidies doubled the price of fuel, which led to increases in the price of services and goods, including food, around the country. The labor unions say that they will shut down offices, ports, oil production, banks and other businesses on Monday. the government said that the change was necessary for the economy. Since the change, there have been protest and riots around the country.
See "Nigerian unions threaten strike in fuel price row", Ola Awoniyi, January 3, 2012