Aug 31 (Reuters) - El Niño weather phenomenon is driving a severe food crisis across Central ‌America's Dry Corridor, with more than 70,000 corn-farming ‌households reporting devastating crop losses, according to a report by Oxfam.

The ​Dry Corridor is a drought-prone region spanning parts of Guatemala, Honduras and El Salvador, where subsistence farmers rely on corn and beans as staple crops. A ‌joint assessment with aid ⁠group Action Against Hunger across 58 municipalities found the crisis has affected about 91,000 ⁠rural households.

• About 78.6% of corn-growing households lost between 75% and 100% of their production, while 64.2% of ​households retaining ​corn reserves estimate stocks ​will last three weeks ‌or less.

• Nearly two-thirds of bean-growing households experienced losses of 75% to 100% of their production.

• Drought was cited as the main cause of crop losses in 89% of communities.

• More than 23,000 households reported ‌reduced access to their primary ​water supply.

• El Niño is ​a weather phenomenon that ​warms the surface of the Pacific ‌Ocean and causes intense rains ​and droughts across ​Latin America.

• More than 6,200 migration movements were documented in the three months prior to the ​assessment, with ‌returning migrants without remittances adding pressure on households.

(Reporting ​by Sofia Menchu; Writing by Raul Cortes ​Fernandez, Editing by Natalia Siniawski)