Nigeria, April 25 -- Air passengers have expressed frustration over prolonged delays and sudden schedule changes by Nigerian air carrier Air Peace, even as the airline attributes the disruptions to ongoing aviation fuel supply challenges.

In two separate notices issued on Saturday, the airline said the situation has affected flight operations nationwide.

"We wish to inform you that flights departing from some of our terminals may experience delays due to the current aviation fuel supply constraints affecting flight operations nationwide," the airline said in one of the statements.

It added that "fuel availability remains limited," a development that has disrupted scheduled departures.

The airline also announced a temporary adjustment ...