ABUJA (Reuters) – Nigeria’s acting president will sign the 2017 budget into law later on Monday, one of his aides told Reuters, as Abuja plans record spending to pull Africa’s biggest economy out of recession.

The OPEC member has been in recession since last year, largely due to low oil prices and militant attacks on the country’s Niger Delta energy facilities. Oil sales usually bring in two-thirds of the government’s revenue.

Vice President Yemi Osinbajo is standing in for President Muhammadu Buhari, who has been on medical leave in Britain since May 7, his second prolonged absence this year. Buhari’s medical condition is unclear.

“The acting president will be signing the budget today,” the presidency aide said.

President Buhari issued a statement saying it was in the interest of the country for Osinbajo to sign the budget into law.

Lawmakers last month passed the record 7.44 trillion naira ($23.6 billion) budget plan, which is bigger than the 7.298 trillion naira draft spending plan submitted by Buhari in December.

Two other presidency sources who did not want to be named also said the budget would be signed on Monday.

Sources said Osinbajo was at an event in the southeastern state of Anambra on Monday and would fly back to Abuja for the budget signing ceremony later in the day.

Last year’s budget, passed in May 2016, was delayed for months due to disagreements between lawmakers and the presidency over spending plans that cut the supply of government money and deepened the economic crisis.

Buhari said in his statement, signed by his spokesman Garba Shehu, that the 2018 budget proposal will be submitted by October and parliament will conclude the process by December so the country can return to a normal budget cycle from next year.

(Reporting by Felix Onuah and Camillus Eboh; Writing by Ulf Laessing and Chijioke Ohuocha; Editing by Hugh Lawson)