A powerful earthquake struck coastal Ecuador on Saturday, killing at least four people, according to a government statement.

The quake hit at a depth of about 66 kilometers and had a magnitude of 6.8, the US Geological Survey said on its website. The Ecuadorian government put the magnitude at 6.5. Local news reports say there was damage to a number of buildings and homes in the Guayas region.

One person died when a building collapsed on their car in the town of Cuenca, while three more were killed in the areas of Santa Rosa, about 530 km (329 miles) southwest of Quito. Various others are trapped under the rubble, the government added.

The Esmeraldas oil pipeline to the capital Quito was temporarily suspended, but it now operating again, while workers were evacuated as a precaution from a coastal liquefied natural gas plant and two terminals. There are also blackouts in some areas.