The U.S. ramped up its response Monday to the humanitarian crisis in Puerto Rico, even as President Donald Trump brought up the island's struggles before Hurricane Maria struck — including "billions of dollars" in debt to "Wall Street and the banks which, sadly, must be dealt with."

The Trump administration has tried to blunt criticism that its response to Hurricane Maria has fallen short of its efforts in Texas and Florida after the recent hurricanes there.

Five days after the Category 4 storm slammed into Puerto Rico, many of the more than 3.4 million U.S. citizens in the territory were still without adequate food, water and fuel. Flights off the island were infrequent, communications were spotty and roads were clogged with debris. Officials said electrical power may not be fully restored for more than a month.

Trump himself pointed out some differences between the two states and the island in a series of tweets Monday night.

Donald J. Trump: Texas & Florida are doing great but Puerto Rico, which was already suffering from broken infrastructure & massive debt, is in deep trouble..

Donald J. Trump: ...It's old electrical grid, which was in terrible shape, was devastated. Much of the Island was destroyed, with billions of dollars....

Donald J. Trump: ...owed to Wall Street and the banks which, sadly, must be dealt with. Food, water and medical are top priorities - and doing well. #FEMA

In Washington, officials said no armada of U.S. Navy ships was headed to the island because supplies could be carried in more efficiently by plane. The Trump administration ruled out temporarily setting aside federal restrictions on foreign ships' transportation of cargo, saying it wasn't needed. The government had waived those rules in Florida and Texas until last week.

Though the administration said the focus on aid was strong, when two Cabinet secretaries spoke at a conference on another subject — including Energy Secretary Rick Perry, whose agency is helping restore the island's power — neither made any mention of Puerto Rico or Hurricane Maria.

Democratic lawmakers with large Puerto Rican constituencies back on the mainland characterized the response so far as too little and too slow. The confirmed toll from Maria jumped to at least 49 on Monday, including 16 dead in Puerto Rico.