MTN Nigeria has confirmed that it suffered a glitch that has affected its services across the country.
It blamed the service outage on multiple fibre cuts which affected voice and data services.
Many of its customers have lamented difficulty making calls or using the internet.
In a statement published on social media, the telecommunications provider said: “You have been experiencing challenges connecting to the network due to a major service outage caused by multiple fibre cuts, affecting voice and data services.
“Our engineers are working hard to resolve with services gradually being restored in some areas.
“We apologise for the inconvenience and ask for your patience and understanding as the team works to restore full service as soon as possible.”