Nigeria senators query helicopter spending

Nigeria's upper chamber of parliament is to ask the central bank governor and the ministers of finance and defence to explain how $462m (£322m) was spent on six helicopters for the air force.

One senator said the money was withdrawn from the federal account last month without the required parliamentary appproval.

The government is facing severe security challenges across the country and needs more equipment.

But with President Muhammadu Buhari promising to eliminate corruption, the helicopter deal is likely to be closely scrutinised by Nigerians.