Nigerian President Muhammadu Buhari has called for "settled and not negotiable" unity in the country in his first speech following a 103 day absence.
Buhari landed on Nigerian soil Saturday after seeking medical treatment in London for an undisclosed illness.
The Nigerian government is juggling calls for independence among the Islamist Boko Haram group in the north of the country, Biafra separatists in the south east, and militants in the oil-rich southern Niger Delta region. Such calls for division are "a step too far," Buhari said.
The speech only made fleeting mention to Nigeria's struggling economy, which has been troubled by the drop in the price of oil. Nigeria has officially been in recession since the second quarter of 2016, its first in 25 years.
According to Malte Liewerscheidt, senior analyst for Africa at Verisk Maplecroft, swift action is needed to turn the country's economic issues around. "The window for reform is closing," he told CNBC. If these are not implemented by the end of 2017 it will be "too late," he said, given that at the start of next year focus is expected to shift to the upcoming presidential election in 2019.
Reforming the country's currency system, which currently incorporates multiple exchange rates, is a priority.