A 7.7 magnitude earthquake struck off the coast of Indonesia early Saturday, damaging buildings and homes, and triggering a tsunami warning. There are no immediate reports of casualties.

The US Geological Survey said the quake hit Indonesia's Flores region at a depth of 10 km at 5:58 am local time. Its epicentre was 68 km north-northwest of the city of Ende in East Nusa Tenggara province. The initial quake was followed by several aftershocks.