, Sept. 2 -- Rescue operations resumed Monday after a devastating 6.0-magnitude earthquake struck eastern Afghanistan late Sunday, leaving more than 800 people dead, according to preliminary figures from the UN's humanitarian agency.

The quake, centered in the remote and mountainous Kunar province, has flattened villages and trapped many under the rubble.

Officials warned the death toll could rise sharply as rescue efforts are being hampered by blocked roads, forcing helicopters to deliver aid and reach survivors.

Daniel Endres, the UN's lead coordinator in Afghanistan, told the BBC that hot meals and blankets were being prepared for affected families.

The Taliban has appealed for international assistance, while the United Kingdom ann...