An earthquake of 6.4 magnitude has shaken parts of Mexico, causing buildings to sway in the capital.
The US Geological Survey said it was centred near the town of Tecpan de Galeana in southern Guerrero state, about 190 miles (300km) south-west of Mexico City.
It was also felt in the resort city of Acapulco, the Associated Press says. There are no reports of any damage or injuries but frightened office workers ran into the streets in the capital.
Engineer Daniel Rodriguez, 55, fled his second floor office.
"At first it felt like a jolt and then it started to move," he told AFP news agency.