WASHINGTON, United States (AFP) — US President Donald Trump said Monday it would be “smart” for Venezuelan President Nicolas Maduro to step down, as US naval forces pressed a blockade on the South American country’s oil wealth.

Venezuela’s key ally Moscow, however, expressed its “full support” for Maduro’s government, as Washington has dialed up military operations and threats against Caracas.

Asked by reporters at his Florida home if Washington’s threats were designed to force Maduro to leave office after 12 years, Trump said: “That’s up to him, what he wants to do. I think it would be smart for him to do that.”

But he added: “If he wants to do something — if he plays tough, it’ll be the last time he’s ever able to play tough.”

Firing back just hours later, Maduro said that Trump would be “better off” if he focused on domestic problems rather than threatening Caracas.

“He would be better off in his own country on economic and social issues, and he would be better off in the world if he took care of his country’s affairs,” Maduro said in a speech broadcast on public television.

The pledge from Moscow, which is embroiled in the war in Ukraine, came on the eve of a United Nations Security Council meeting Tuesday to discuss the mounting crisis.

In a phone call, the foreign ministers of the allied nations blasted the US actions, which have included strikes on alleged drug-trafficking boats and the seizure of two oil tankers.

A third ship was being pursued, a US official told Agence France-Presse on Sunday.

“The Russian side reaffirmed its full support for and solidarity with the Venezuelan leadership and people in the current context,” the Russian foreign ministry said of the call between Sergei Lavrov and Venezuelan counterpart Yvan Gil.