Residents walk among the rubble of building damaged in earthquakes the previous day in Catia La Mar, Venezuela, Thursday. (AP Photo/Pedro Mattey)

Venezuelans in the U.S. rushed to organize donation drives Thursday after devastating earthquakes that officials say killed at least 188 people and injured hundreds more in their home country.

Oscar Torres and thousands of others spent the last 24 hours keeping up with a flurry of messages posted to a WhatsApp group that connects people in Venezuela with their families. He lives in Doral, Florida, a city outside Miami that’s home to the largest Venezuelan population in the U.S.

“Already this morning, I was looking at the group in Doral and everybody’s pitching in — money, medicine, water. First, necessity items,” said Torres, a sales manager who moved to the U.S. from Venezuela in 1995. “They’re talking about making the first shipment ASAP.”

The 7.2- and 7.5-magnitude earthquakes Wednesday night caused severe damage to the country’s main airport in the capital of Caracas, which could hamper efforts to get aid into the country quickly. The quakes were among the strongest in Venezuela in more than a century.

In photos of the aftermath, injured children, animals and civilians covered in dust and blood were pulled out of concrete rubble.

In addition to those killed and injured, thousands more were missing — leaving many families members in the U.S. scrambling for updates. More than 770,000 Venezuelans live in the U.S., with large communities settling in Texas and Utah, in addition to Florida.

Torres still has uncles and cousins who live in Caracas and Valencia, another hard-hit Venezuelan city. He said some of them were injured as they fled buildings during the quakes.

“Their homes are destroyed and a few buildings have collapsed,” Torres said. “Thankfully, I don’t know anyone who passed away.”

In cities across northern Venezuela, panicked residents poured out into the streets and searched for the missing in the debris. Injured children, animals and civilians covered in dust and blood were pulled out of concrete rubble.

One mother sobbed and collapsed in grief as the bodies of her 3- and 10-year-old children were wrapped in blankets and carried away. Others screamed the names of missing loved ones. Some stood in silent shock.

Offers of help poured in from around the world, including from the United States, which seized Venezuela’s then-president Nicolas Maduro at the beginning of the year in a surprise military operation.

The natural disaster is just the latest challenge for acting President Delcy Rodríguez, the former vice president who took office in January after Maduro’s capture. Venezuela has been facing economic disarray for more than a decade, and many people reject the legitimacy of the political movement Rodriguez represents.