Iran's foreign minister issued the most direct threat yet Wednesday against the United States after Tehran's bloody crackdown on protesters, warning the Islamic Republic will be "firing back with everything we have if we come under renewed attack."

The comments by Abbas Araghchi, who saw his invitation to the World Economic Forum in Davos rescinded over the killings, comes as an American aircraft carrier group moves westward toward the Middle East from Asia. American fighter jets and other equipment appears to be moving in the Mideast after a major U.S. military deployment in the Caribbean saw troops seize Venezuela's Nicolás Maduro.

Russia's interior minister has met with top leaders of ally Cuba in Havana, a show of solidarity after U.S. President Donald Trump warned that the island's longtime communist government "is ready to fall."

Trump this month told Havana to "make a deal," the nature of which he did not divulge, or pay a price similar to Venezuela, whose leader Nicolas Maduro was ousted by U.S. forces in a January 3 bombing raid that killed dozens of people.

Sudan's army has received and is considering a new proposal from the United States and Saudi Arabia for a truce with its rival paramilitary, a government source told AFP on Wednesday.

The Security and Defense Council -- a high-level body that includes officials from the army and the allied government -- "is holding a meeting today to discuss the U.S.-Saudi initiative for a humanitarian truce and a ceasefire", the source said on condition of anonymity because they were not authorized to brief the media.

An Iranian Kurdish opposition party headquartered in Iraq accused Iran on Wednesday of conducting a rocket and drone attack on its premises, killing one of its members and wounding two others.

"At dawn today, the occupying Iranian state... targeted one of the Kurdistan National Army's headquarters" using missiles and drones, said the Kurdistan Freedom Party, referring to an armed group that operates under its authority.

Syria's defense ministry announced a four-day ceasefire with Kurdish forces on Tuesday, after an understanding was reached between the two sides on the future of the Kurdish-majority Hasakeh region.

A senior official in Syria's Kurdish administration said Tuesday that the Kurds were in contact with Israel and were open to support from "any source", amid tensions with Damascus despite a recent deal.

"There are certain figures from the side of the Israeli state engaged in communications with our side... and if this conversation leads to support, we would be open to support... from any source," Elham Ahmad told reporters in an online event, according to the English translation of her remarks in Kurdish.

EU chief Ursula von der Leyen on Tuesday vowed Europe's response to U.S. President Donald Trump's repeated threats on Greenland and tariffs will be "unflinching".

"Plunging us into a downward spiral would only aid the very adversaries we are both so committed to keeping out of the strategic landscape. So our response will be unflinching, united and proportional," von der Leyen said in a keynote speech at a gathering of the global elites in Davos.

U.S. President Donald Trump's latest tariff threat against Europe over Greenland has hit its top economy Germany just as hopes are growing for a modest recovery after years of stagnation.

Germany's government and its export-reliant businesses were blindsided when Trump again wielded the tariffs axe at the weekend -- this time sparked by his anger over a geopolitical rather than an economic dispute.

French President Emmanuel Macron has sent his U.S. counterpart a message offering to host a G7 summit and invite Russia on the sidelines, the French leader's entourage confirmed on Tuesday.

Macron also proposes inviting Ukraine to the meeting in Paris on Thursday, as well as Denmark to discuss European-U.S. disagreements over Greenland.

European leaders take the stage on Tuesday ahead of U.S. President Donald Trump at the gathering of global elites in Davos.

Trump said he had agreed to a meeting of "various parties" about his attempt to take over Greenland at the Davos gathering of global elites this week.