Iranian officials reached out to the wider Middle East on Wednesday over the threat of a possible U.S. military strike on the country, a month since the start of protests in Iran that soon spread nationwide and sparked a bloody crackdown.

Two nations, Saudi Arabia and the United Arab Emirates, have signaled they won't allow their airspace to be used for any attack. But America has moved the USS Abraham Lincoln and several guided missile destroyers into the region, which can be used to launch attacks from the sea.

There can be no negotiations between Washington and Tehran if the United States makes threats against the Islamic republic, the Iranian foreign minister said Wednesday, with President Donald Trump refusing to rule out military action over Iran's crackdown on protesters.

"Conducting diplomacy through military threat cannot be effective or useful. If they want negotiations to take shape, they must certainly set aside threats, excessive demands and raising illogical issues," said Abbas Araghchi after the U.S. deployed an aircraft carrier in the region.

Secretary of State Marco Rubio plans on Wednesday to warn that the Trump administration is ready to take new military action against Venezuela if the country's interim leadership strays from U.S. expectations.

In prepared testimony for a hearing before the Senate Foreign Relations Committee, Rubio says the U.S. is not at war with Venezuela and that its interim leaders are cooperating, but he notes that the Trump administration would not rule out using additional force if needed following a raid to capture former President Nicolás Maduro early this month.

Russian strikes across Ukraine killed three people and wounded several more, authorities said on Wednesday.

The fresh strikes came hours after Russian attacks on Tuesday night had killed at least 12 people across Ukraine, including five passengers in a train targeted by a drone attack, according to Ukrainian authorities.

Europe must step up efforts on defense and play a bigger role in NATO as U.S. President Donald Trump has "shaken the transatlantic relationship to its foundation", EU top diplomat Kaja Kallas said Wednesday.

"Let me be clear: we want strong transatlantic ties. The US will remain Europe's partner and ally. But Europe needs to adapt to the new realities. Europe is no longer Washington's primary centre of gravity," Kallas told a defence conference in Brussels.

A U.S. naval strike force led by an aircraft carrier was in Middle Eastern waters on Tuesday as Iran vowed to hit back against any strike and President Donald Trump said he believed the Islamic republic still wanted talks.

Washington has not ruled out new military intervention against Tehran over its crackdown on protests, which according to rights groups saw thousands of people killed within days.

U.K. Prime Minister Keir Starmer is heading to China, seeking a thaw in relations with Beijing at a time of strained ties with the United States.

He's hoping for an economic boost to Britain, but risks the wrath of China hawks at home — and of U.S. President Donald Trump, who's already heaping tariffs and criticism on America's closest allies.

North Korea launched short-range ballistic missiles toward its eastern waters on Tuesday, according to its neighbors, as the North heightens animosities with rival South Korea ahead of a major political meeting.

South Korea's military said it detected liftoffs of several ballistic missiles from an area northeast of the North Korean capital Pyongyang before the missiles each flew about 350 kilometers (217 miles).

China promised on Tuesday to provide Cuba with "support and assistance" in the face of repeated threats from the United State, which weeks ago removed Havana's ally in Venezuela Nicolas Maduro.

Beijing and Havana are longtime socialist allies, and Chinese authorities have consistently opposed the economic blockade imposed on the island for decades by the United States.

Iran's bloody crackdown on nationwide protests killed at least 6,126 people while many others still are feared dead, activists said Tuesday, as a U.S. aircraft carrier group arrived in the Mideast to lead any American military response to the crisis.

The arrival of the USS Abraham Lincoln aircraft carrier and guided missile destroyers accompanying it provide the U.S. the ability to strike Iran, particularly as Gulf Arab states have signaled they want to stay out of any attack despite hosting American military personnel.