10:49 (GMT + 4) A strong earthquake has struck central Mexico, killing at least 248 people and toppling dozens of buildings in the capital, Mexico City, BBC reported.
President Enrique Peña Nieto said more than 20 children had died and 30 were missing after a school collapsed.
The 7.1 magnitude quake also caused major damage in neighbouring states.
The tremor struck shortly after many people had taken part in an earthquake drill, exactly 32 years after a quake killed thousands in Mexico City.
The country is prone to earthquakes and earlier this month an 8.1 magnitude tremor in the south left at least 90 dead.
07:07 (GMT + 4) At least 149 people died when a powerful earthquake of magnitude 7.1 struck central Mexico on Tuesday, toppling buildings in the heavily populated capital where rescuers scoured frantically under the rubble of ruins for survivors, Reuters reported.
Thousands ran into the streets in panic, and millions lost electricity when the quake struck around lunchtime.
Mexico City Mayor Miguel Angel Mancera said 44 buildings were severely damaged or destroyed. Several major gas leaks and fires occurred.
Interior Secretary Miguel Angel Osorio Chong told local television rescue teams were working painstakingly with picks and shovels. The United Nations expressed condolences and said it was ready to assist.
“We have some buildings where we have reports that there could be people inside. They are doing it with lots of caution,” the interior secretary said, adding that more rescue personnel would be needed.
Ambulances and fire engines confronted gridlock on Mexico City’s streets as millions of workers tried to go home.
The temblor occurred on the 32nd anniversary of a devastating quake that killed thousands in Mexico City in 1985. Many Mexicans had taken part in earthquake drills on Tuesday as is customary every Sept. 19.
A powerful quake in southern Mexico on Sept. 7 killed at least 98 people.
Among buildings that collapsed in the capital on Tuesday were apartment blocks, a school, a factory and a supermarket. The fashionable Roma district was hard hit, and a six-story apartment building was among several collapses reported.
Hundreds of volunteers and rescue workers dug through the rubble with picks, shovels and their bare hands.
“My wife is there. I haven’t been able to communicate with her. She is not answering, and now they are telling us we have to turn off our cellphones because there is a gas leak,” said Juan Jesus Garcia, 33, choking back tears.
On Twitter, relatives posted pleas for news of family members, including 8-year-old Alexis Vargas Macias who was at Enrique Rebsamen school when the quake hit. The school collapsed, television images showed, and according to local media and family members on social media, several children were killed.
Earthquakes of magnitude 7 or above are regarded as major and are capable of causing widespread heavy damage.
The highest death toll was in Morelos State, just south of Mexico City, where 64 deaths were reported, said Luis Felipe Puente, head of the nation’s civil protection agency. In Mexico City, at least 36 people were killed, he said.