A large natural gas field has been discovered off the coast of Mozambique.
The field, containing up to 425 billion cubic metres (15 trillion cubic ft) of gas, was discovered by ENI of Italy.
ENI was given a license in 2006 to explore the area, which is about 2000km north of the capital, Maputo.
The BBC reports the discovery raises the prospects that East Africa contains more natural gas than previously thought and could become a major gas exporter.
Andarko, a rival US oil and gas explorer, raised its estimates of the amount of natural gas in the Mozambique area earlier this month by two-thirds.
ENI said the discovery was about 40km off the Cabo Delgado coast.