The Trump administration is preparing to ask for at least $10 billion more in federal relief for disaster recovery in the wake of the latest deadly hurricane to strike U.S. shores, according to multiple people familiar with the plans.

The White House is expected ask for another short-term infusion of cash to pay for the response to the damage caused by Hurricane Maria across Puerto Rico and the U.S. Virgin Islands, according to top congressional aides. Officials from both islands and some lawmakers are clamoring for legislation that would provide tens of billions of dollars in relief and address Puerto Rico’s long-simmering fiscal crisis, shore up its bankrupt electric company and plug a shortfall in Medicaid funding. Work on a more comprehensive relief package will continue into the fall, the aides said.

Donations pile up Monday outside PNC Park in Pittsburgh, where the Pittsburgh Pirates baseball team is collecting supplies for Puerto Rico. The U.S. government is reportedly planning to seek $10 billion to help recovery efforts in the storm-wracked U.S. territory. Associated Press/Gene J. Puskar

“This is a disaster, this is something that calls for a plan. You can call it the Marshall Plan or the Trump Plan, but there has to be a plan,” said Puerto Rico State Sen. Carmelo Ríos. “There has to be a plan to make sure that this kind of event doesn’t happen again.”

Ríos and other legislators from Puerto Rico and the Virgin Islands arrived in Washington, D.C., on Monday for meetings with top agency officials and senior lawmakers about forthcoming relief plans. A planned event on Capitol Hill to draw attention to their campaign for a robust relief package was canceled because of the mass shooting in Las Vegas.

Ríos, the Puerto Rico Senate’s majority leader, warned that Congress should act quickly. If it doesn’t, he expects more than 100,000 to 200,000 island residents to relocate, at least temporarily, to the mainland United States in the coming weeks.

“They’re not going to Florida, only. They’re going to Texas, to Pennsylvania, to North Carolina – I have a lot of friends going there – because they’re looking for places where they can settle,” Ríos said.

In response to the impending influx of Puerto Ricans, Florida Gov. Rick Scott declared a state of emergency in all of the state’s 67 counties on Monday so that local and state agencies can begin preparing to provide services.

“With families displaced by Hurricane Maria already present and still arriving in Florida, it is critical that our state is prepared to provide the resources they need upon entering our state,” Scott, R, said in a statement.

At the White House, press secretary Sarah Huckabee Sanders didn’t say when the administration will be asking for more federal funding, but she defended the administration’s ongoing response, saying, “The federal government is doing everything within our powers and capabilities to first focus on the life-sustaining and lifesaving measures …”