Puerto Rico Governor Ricardo Rosselló on Monday declared a state of emergency and activated the National Guard in preparation for the landfall of Irma, a dangerous Category 3 hurricane.
"Despite the economic challenges Puerto Rico is facing, the approved budget has $15 million for the emergency fund," Rosselló said in a statement.
Irma, which is forecast to strengthen on Tuesday night, is set hit the U.S. territory on Wednesday, the U.S. National Hurricane Center said.
To help residents prepare for the storm, the Puerto Rican government activated a price freeze on basic necessities, including food and water, medicines, power generators and batteries.
The storm will be the second powerful hurricane to thrash the United States and its territories in as many weeks.
Residents in Texas and Louisiana are still reeling from the devastating effects of the deadly Hurricane Harvey, which dumped several feet of rain and destroyed thousands of homes and businesses when it landed last week.
Rescuers searched painstakingly through flooded neighborhoods across southeastern Texas on Friday for people stranded by Hurricane Harvey's deluge as President Donald Trump asked Congress for $7.85 billion in federal disaster relief.