Cuba’s foreign minister accused the United States of trying to undermine the “political will” of Cubans and hinted at diplomatic cooperation with Washington.

Russia warned Cuba’s energy crisis Criticized the United States for taking “suffocating measures” against the socialist island country.

Kremlin spokesman Dmitry Peskov sounded the alarm on Monday, saying Moscow was discussing “possible solutions” to provide Havana with “all assistance” it needs.

Cuba is in trouble after U.S. President Donald Trump cut off oil shipments from Venezuela after Venezuelan President Nicolas Maduro was kidnapped by U.S. forces in a bloody nighttime attack in early January.

Trump has also threatened to impose tariffs on other countries, including Mexico, if they continue to ship much-needed fuel to Cuba, which has suffered decades of punitive sanctions from Washington.

“The situation in Cuba is indeed very serious,” Peskov told reporters in Moscow.

“The suffocating measures imposed by the United States have caused many difficulties for the country,” he added.

Foreign Minister Sergei Lavrov reiterated Moscow’s “solidarity with the people of Venezuela and Cuba” in a separate speech published on the Russian Foreign Ministry’s website.

“We believe that only they can decide their own destiny,” Lavrov said.

As the United States attempts to strangle Cuba’s economy, severe fuel shortages have paralyzed the country and left power plants struggling to keep functioning.

The Cuban government was forced to emergency measuresincluding a four-day work week at state-owned enterprises, restrictions on fuel sales, closing universities and reducing class times.

Cuba also warned international airlines that starting Tuesday, jet fuel will no longer be available on the island. On Monday, Air Canada announced Flights to Cuba suspended due to aviation fuel shortage.

“Undermining the political will of the Cuban people”

Moscow has criticized Washington’s actions against Havana for weeks.

Russia has called U.S. actions against Cuba “unacceptable” and warned of a possible humanitarian crisis in the country.

Moscow’s criticism of the United States comes as Russia has been criticized for continuing to bomb Ukraine’s energy infrastructure as part of its war effort against its neighbor. The Russian attack left more than a million people without power amid frigid temperatures, according to Ukrainian officials.

United Nations Secretary-General Antonio Guterres also warned Cuba’s humanitarian “collapse” If the country’s energy needs are not met.

On Monday, Cuban Foreign Minister Bruno Rodriguez denounced Washington’s “cruel aggression,” saying it was aimed at “undermining the political will of the Cuban people.”

“The situation is serious and requires great sacrifices,” Rodriguez said, reiterating Cuba’s “willingness to engage in dialogue on its own terms.”

Cuban President Miguel Díaz-Canel said his country Willing to hold talks with the United Statesbut not under pressure.

Trump and his secretary of state, Marco Rubio, a Miami-born son of Cuban immigrants, have made no secret of their desire to achieve regime change in Havana.

Mexican President Claudia Scheinbaum defies Trump, says sanctions hurt the cuban people is “wrong”.

“We will continue to support them and take all necessary diplomatic action to resume oil shipments to Cuba,” Scheinbaum told reporters on Monday.

“You can’t strangle someone like this. It’s very unfair, very unfair.”

In a recent executive order, Trump called Cuba an “unusual and extraordinary threat” to U.S. national security, and warning country If they supply oil to Cuba, he will impose more tariffs on it.

Mexico is Cuba’s second-largest oil supplier, after Venezuela.

Sheinbaum has previously warned of a humanitarian crisis in Cuba, but she is keen to avoid exposing her country to tariffs from the United States, Mexico’s main trading partner.