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WASHINGTON — The mayor of San Juan on Tuesday denounced the U.S. government’s plan to end emergency food and water aid to Puerto Rico, saying she had just sent powdered milk to a school that was still without power and struggling to find the necessary supplies for its students.

“Yesterday, I had to help — because it is a moral imperative to help — a school about 45 minutes from San Juan that still has no water, no electricity and no milk for their children,” the mayor, Carmen Yulín Cruz, said at the Latino Victory Summit, a gathering of Latino leaders and activists that seeks to boost the number of Hispanics in elected office.

File photo of San Juan Mayor Carmen Yulin Cruz speaking on Capitol Hill in Washington on Nov. 1, 2017. Jim Watson / AFP - Getty Images

The school is public and serves many poor children around the town of Morovis. Cruz said she has received calls from other schools requesting food, "but it really has to be the government."

The Federal Emergency Management Agency (FEMA) said in a statement that commercial supplies of food and water have been re-established in Puerto Rico and that private suppliers are “sufficiently available that FEMA commodities are no longer needed for emergency operations." The supplies were scheduled to end Wednesday; Washington's decision to end aid to the island was first reported by NPR.

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FEMA said most grocery stores are open, as are transportation systems, gas stations, banks and ATMs. FEMA staging areas are still open and have provisions for local mayors to obtain for their citizens, FEMA said.

Jazmin Morales washes dishes in a bucket outside a her home damaged during Hurricane Maria in September 2017, in Yabucoa, Puerto Rico January 29, 2018. ALVIN BAEZ / Reuters

"The reality is that we just need to look around. Supermarkets are open, and things are going back to normal," Alejandro De La Campa, FEMA's director in Puerto Rico, told NPR.

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De La Campa said that if FEMA is giving out free food and water, that competes with the grocery stores and hurts the economy, which needs to be jump-started to help long-term recovery.

But Cruz disagreed that the situation has improved as much as FEMA said.

“While I’m standing here with you there are children without food in Puerto Rico,” Cruz said at the summit.

She said she continues to see women crossing rivers using a rope, because their bridge was washed away, to get medication for their children.

“We need the help and it’s not help, we have paid for it,” Cruz said, noting that Puerto Ricans have fought in every U.S. military campaign.

"There is a need in Puerto Rico, and we ask the president to, for once, do the right thing and not take the aid away from Puerto Rico," said Cruz who invited by Sen. Kirsten Gillibrand, D-N.Y., to attend President Donald Trump's first State of the Union address on Tuesday night.

Puerto Rico municipalities have not gotten back as much as they invested in FEMA, she said. San Juan has given FEMA $20 million to care for people in the capital city and received $4.9 million back, she said.

A mountain of rubble remains in front of the house of the Oliveras Gonzalez family in Morovis on Dec. 21, 2017. Carlos Giusti / AP

FEMA said it has given more than $1.6 billion in food and more than $361 million in water to hurricane survivors.

"During all the humanitarian crisis in Puerto Rico, there's been a feature of the Trump administration and that is that they take away the aid before it's done," Cruz said to reporters following her speech, citing the example of the withdrawal of the Army Reserve even though bridges still need building.

RELATED: Latinos invited to Trump's State of the Union put focus on Puerto Rico, immigration

Asked how long FEMA should say, Cruz said as long as it's necessary, because 35 percent of people still do not have power. While grocery stores may be open, "if you don't have power, you don't have capacity to keep food in your house."

Rep. Nydia Velazquez, D-N.Y., who also spoke at the summit, said she and other members of Congress are demanding that help continue.

“This is outrageous. In New Orleans, FEMA stayed there for 10 years,” said Velazquez, who is Puerto Rican. “This is another sign of a president that is totally disengaged from how they treat fellow citizens in the island of Puerto Rico and the Virgin Islands.”

Asked what could be done if that help is not renewed, Velazquez said, “Believe me, they are going to renew it.”

Congresswoman Nydia Velazquez (D-NY) giving an impassioned response at the Puerto Rico/Puerto Ricans: A Diaspora Summit April 22, 2016. Brian Latimer

Puerto Rico was hit Sept. 20 by Hurricane Maria, a Category 4 hurricane that was packing 155 mph winds when it made landfall. The storm thrust the island into darkness. The Trump administration has been criticized for its slow response and for underestimating the magnitude of the storm's destruction.

About 35 percent of the island still lacks power, four months after Maria hit, longer in places that were hit by Hurricane Irma on Sept. 6. Puerto Rico reports 96 percent of the island has water, but there are questions about how much of it is potable.

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