Nigerian governors have rejected a deal to raise the minimum wage to 30,000 naira ($82; £64) from 18,000 naira a month, reports the AFP news agency.

Earlier this month union representatives agreed this pay rise with the private sector and government officials, averting a nationwide strike.

But state governors say they cannot afford to pay $82 a month, AFP reports.

Governor Abdulaziz Yari, from northern Zamfara State, is quoted as saying that 27 of the 36 states cannot even afford to pay the current minimum wage.

"We will be bankrupt," he warned.

He added that a committee would be formed by the governors to meet President Muhammadu Buhari resolve the row.