Two commuter trains collided head-on near the Danish capital on Thursday injuring 17, of whom five were in critical condition, emergency services said.

"We can't provide any details for now about the cause of the accident," police official Morten Kaare Pedersen told reporters.

U.S. President Donald Trump on Wednesday said Iran had halted alleged plans to execute eight women arrested over anti-government protests, after he urged Tehran to release them to help peace negotiations.

A second round of U.S.-Iran talks could take place within the next three days, the New York Post reported Wednesday, citing unnamed Pakistani sources and President Donald Trump.

Ukraine is pushing for face-to-face talks between President Volodymyr Zelensky and Russian President Vladimir Putin, Kyiv's top diplomat said, presenting a potential summit as a way of injecting new momentum into U.S.-led efforts to end Russia's more than four-year invasion of its neighbor.

Meanwhile, a Ukrainian drone attack deep inside Russia struck a residential building, killing a woman and a child, Russian officials said Wednesday.

European Union envoys gathered on Wednesday with the majority cautiously optimistic that a massive loan to help meet Ukraine's military and financial needs for the next two years may soon be approved after months of deadlock.

At a meeting in Brussels, the envoys assessed whether Hungary might lift its veto on the 90-billion-euro ($106 billion) loan package, which Ukraine desperately needs to prop up its war-ravaged economy and help keep Russian forces at bay.

Iran's foreign minister said on Tuesday the Islamic republic knew how to "resist bullying", as a ceasefire was due to expire and Tehran had yet to formally respond to an invite to talks with the U.S. in Islamabad.

U.S. President Donald Trump on Tuesday accused Iran of having repeatedly violated a temporary truce due to expire soon, with new peace talks mired in doubt after Tehran said it had not yet sent a delegation.

U.S. Vice President JD Vance, expected to lead a U.S. delegation at upcoming negotiations with Iran in Pakistan, was still in Washington midday Tuesday to participate in meetings, the White House said.

"Additional policy meetings are taking place at the White House in which the vice president will participate," an official said in a brief statement sent to AFP shortly after 1700 GMT.

There appeared to be movement toward another round of U.S.-Iran ceasefire talks Tuesday as two regional officials told The Associated Press that both countries have signaled a return to Pakistan for discussions. There was no immediate word on timing of talks.

Iran said it had yet to decide whether to attend a new round of peace negotiations with the United States, as Washington's delegation prepared to depart for Pakistan on Monday.