The retail prices of gasoline and diesel will be raised starting Saturday, the country's top economic planner said Friday. The benchmark retail price of gasoline will be raised by 0.24 yuan per liter and diesel by 0.26 yuan per liter, the National Development and Reform Commission (NDRC) said in a statement on its website. It will be the fourth price hike this year, as well as the biggest increase since September 2012. Gasoline and diesel prices also went down four times this year. The NDRC last adjusted gasoline and diesel prices on July 6, cutting the benchmark retail prices of gasoline and diesel by 0.06 yuan per liter, to reflect falling international crude oil prices.