The death toll from Hurricane Maria in Puerto Rico has risen to at least 10 people, including two police officers who drowned in floodwaters in the western town of Aguada, according to The Associated Press.
Puerto Rico's Gov. Ricardo Rossello called the category three storm, the worst storm in a century.
"This is without a doubt the biggest catastrophe in modern history for Puerto Rico,” he said on Saturday.
The news comes a day after a dam in western Puerto Rico failed, prompting hundreds of people to evacuate from their homes.The failed dam has caused flash floods on Puerto Rico's Guajataca river.
Rossello said that there is “significant damage” to the dam and officials believe it could collapse at any moment.
“We don’t know how long it’s going to hold. The integrity of the structure has been compromised in a significant way,” Rossello said.
The National Weather Service (NWS) wrote on Twitter Friday that buses were "currently evacuating people from the area as quickly as they can."
The governor encouraged Americans to pray for Puerto Rico.
"Now we're looking down the barrel of Maria, a historic Category 5 hurricane. Although it looks like a direct hit with major damage to Puerto Rico is inevitable, I ask for America's prayers," he said. "No matter what happens here in the next 36 hours, Puerto Rico will survive, we will rebuild, we will recover, and with your support, we will come out stronger than ever."
Hurricane Maria is expected to head east of the Bahamas over the weekend, forecasters say.