Car covered with ash in Mexico City
© Omar Torres/AFP/Getty ImagesA car is covered with ashes from the Popocatepetl volcano in Mexico City on Aug. 1.
Mexico's national disaster prevention agency says the Popocatepetl volcano has spewed ash over Mexico City and neighbouring areas.

The agency says the volcano erupted for about nine hours, until 3 a.m.

Mexico City residents awoke Monday to cars coated in a light dusting of ash. The disaster agency's monitoring cameras showed glowing rocks shot from the volcano's crater landing more than a half-mile (1,000 metres) down its slope.

About 25 million people live within 62 miles (100 kilometres) of the crater of the 17,797-foot (5,426-meter) stratovolcano. It's been periodically erupting since 1994.

Source: The Associated Press