Thousands of Nigerians are protesting against the rising price of fuel, following the government's decision to remove government subsidies.
A general strike is under way with public transport at a halt and shops and offices closed.
At least 14 protesters were injured in the northern city of Kano during clashes with the police, while in Lagos a demonstrator is reported to have been shot dead.
Many Nigerians saw the fuel subsidy as their only benefit from the country's oil wealth, but the government has insisted it is economically unsustainable.
Gas prices have doubled from 40 cents per liter to 80 cents per liter since a government fuel subsidy ended on Jan 1.
Anchor Lisa Mullins talks to the BBC's Tommy Oladipo is in Lagos says tens of thousands of Nigerians took to the streets to protest the government's decision to remove the subsidies leading to higher gas prices.