ABUJA (Reuters) – Nigeria’s government has approved a $200 million loan from a World Bank agency to develop infrastructure in Lagos state, its commercial hub, the minister for works, power and housing said on Wednesday.

The loan was the second tranche of a total of $600 million lent by the International Development Association to the Nigeria government for Lagos state since 2010, Babatunde Fashola said.

Lagos, a mega-city of 21 million people in the state of the same name, is the commercial engine of Africa’s biggest economy. Its gross domestic product accounts for about a third of Nigeria’s overall GDP.

Fashola, who did not give details of any projects for which the loan would be used, said the money had been intended for distribution in three tranches each of $200 million to end in 2013 but had been delayed.

“It suffered delays as a result of partisan political differences in the last dispensation. After the first tranche was disbursed there was a freeze on the second tranche,” he told reporters.

Fashola said the loan was to be repaid over 25 years at an interest rate of 2.5 percent.

(Reporting by Felix Onuah; Writing by Alexis Akwagyiram; Editing by Chijioke Ohuocha, Larry King)