BBC:-A strong tremor in southern Mexico temporarily suspended the search for survivors of this week’s powerful earthquake in the capital, Mexico City.
People ran into the streets as alarms sounded after the magnitude 6.1 quake hit the state of Oaxaca, some 520km (323 miles) south of Mexico City.
Some buildings already damaged and a bridge collapsed in the state.
Tuesday’s quake left at least 305 dead. Hope is fading that more survivors can be rescued from the rubble.
Saturday’s earthquake struck near the city of Matias Romero at 07:53 local time (12:53 GMT) and was relatively shallow, with a depth of 9km, the US Geological Survey said.
Mexico’s disaster agency said it was an aftershock of the magnitude 8.1 earthquake that hit the state on 7 September, in which at least 90 people died.