Government offices are shut in Nigeria's capital, Abuja, after the country's two main trade unions called an indefinite strike to demand higher wages.

Many of the city's banks are also closed.

Union leaders are going around to monitor the effectiveness of the strike.

There is hardly anyone in the vicinity of the Federal Secretariat, where government ministries are based.

A few security personnel are guarding the building.

Unions want the government to triple the monthly minimum wage to $164 (£125).

The government had promised to review the wage in the face of the rising cost of living.

Nigeria - which emerged from a recession last year - is due to hold elections next year.