Venezuela's opposition leader Maria Corina Machado said on Monday she is "willing to do whatever it takes" to return to the country to help with recovery efforts following last week's twin earthquakes.The deathtoll from the quakes rose to 1,719 and the search for survivors entered a more desperate phase.Ms Machado, currently in Panama, accused the Venezuelan government of blocking her attempt to return. "I am willing to do whatever it takes, speak to whoever I need to speak to, in order to coordinate and serve our people," she said in a video posted on X, adding that she "will be in Venezuela to help coordinate and encourage citizens' efforts during the emergency".She gave no further details of her plan to enter the country.Ms Machado had been living in hiding since claiming victory in the country's disputed 2024 election. In December, she secretly fled by boat to Oslo to receive the Nobel Peace Prize, which she later handed to US president Donald Trump.Her bid to return has caused friction in Washington, where she has been asked to delay it. A White House official told Reuters on Saturday that Ms Machado had contacted several US administration officials, including at the White House, the State Department and Congress, seeking support for her return.The capture of former president Nicolás Maduro by US forces in January had raised expectations among some opposition figures that Ms Machado, 58, would take a leading role in governing Venezuela. Mr Trump has instead thrown his support behind Mr Maduro's former deputy, interim president Delcy Rodríguez, saying Ms Machado lacked the backing needed to lead the country in the near term.The State Department said on Monday it was "solely focused on continuing to advance our efforts in response to the devastating earthquakes in Venezuela", making no reference to her requests.Turkish rescuers search through the rubble of a collapsed building in Caraballeda, La Guaira state, Venezuela (AFP/Getty)The deathtoll rose to 1,719 on Monday afternoon, according to Jorge Rodríguez, president of Venezuela's National Assembly. Around 5,000 people have been injured and more than 15,000 displaced, Mr Rodríguez said, with tens of thousands still unaccounted for.The critical 72-hour window in which survivors are most likely to be found alive has now passed, though rescuers continued searching as some survivors were still being found days later.In one of the most dramatic rescues, Aaron Levi Cantillo Vargas, 21, was pulled alive from rubble in the town of Caraballeda after being trapped for 106 hours, Mr Rodríguez said, posting footage of the rescue. A man and his son were also freed on Sunday morning after four days trapped beneath the rubble, carried out on a tarp by rescuers from the US, France and Venezuela and given intravenous fluids in an ambulance.A 4.6 magnitude aftershock, centred at a depth of 10km, struck north of Caracas early on Monday, according to the US Geological Survey. No damage was immediately reported.Three Americans are among those killed, a senior Trump administration official told NBC News. Of around 5,000 Americans believed to be in Venezuela, 12 remain missing, and more than 300 have contacted the US State Department for assistance.Washington has pledged more than $300m in aid, up from a previous commitment of $150m, the State Department said, with funds directed through partner organisations including Samaritan's Purse, Catholic Relief Services, the International Organisation for Migration, the World Food Programme and the Red Cross.The US has deployed four urban search-and-rescue teams comprising more than 300 first responders and almost two dozen search dogs. A specialised team of Marines is working to repair the port of La Guaira, one of Venezuela's two main ports, to allow critical supplies to be delivered by sea, a senior administration official said, adding that the USS Fort Lauderdale, an amphibious transport dock warship, had also docked there.The United Nations humanitarian affairs agency said 44 international urban search and rescue teams, comprising 2,245 specialists and 140 search dogs, had been deployed to Venezuela by Saturday, with more teams including rescuers from Israel arriving on Monday. Delcy Rodríguez said in a post on X that the international response now totalled 30 countries, 3,681 rescuers, 1,086 tonnes of supplies, 27 vehicles and 118 search dogs. "Thank you," she wrote.Frustration has continued to grow over the Venezuelan government's response. Many residents in the worst-affected areas say they have seen little evidence of the 14,000 military personnel and police officers the government says have been deployed. "My family has been here since Wednesday after what happened," Oraimis Rodriguez Ramirez, a member of a family who organised themselves into a rescue brigade, told NBC News outside a collapsed building in Caracas. "We have no answers, there's no organisation." Civilians have also blocked an excavator from leaving the site of a collapsed building after state workers were seen taking selfies in front of flattened buildings before leaving without helping, according to the Associated Press.