Vendors carry firewood at a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A worker chops firewood at a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A man smiles as he carries firewood he bought on a street amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A vendor displays firewood at a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa December 2, 2015. (Photo by Khaled Abdullah/Reuters)





Firewood is displayed for sale on a street amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A vendor carries firewood at a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A vendor carries firewood at a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A worker chops firewood at a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa, December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A boy pushes a wheel cart with firewood at a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa, December 2, 2015. (Photo by Khaled Abdullah/Reuters)





Workers carry a wood pole at a firewood market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa, December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A worker chops firewood at a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa, December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A vendor waits for customers inside his kiosk at a firewood market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa, December 2, 2015. (Photo by Khaled Abdullah/Reuters)





A man carries firewood he bought from a market amid ongoing fuel and cooking gas shortages in Yemen's capital Sanaa, December 2, 2015. (Photo by Khaled Abdullah/Reuters)