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.

In the leadup and throughout the seven-week war, U.S. President Donald Trump has faced criticism from the left and from some of his own supporters that he followed Israel’s lead into launching the conflict.

Japan on Monday issued an advisory for northern coastal areas for an increased risk of a possible mega-quake induced by a major quake earlier in the day.

The Cabinet Office and the Japan Meteorological Agency said there is 1% chance for a mega-quake occurring on the northern Japanese coast in the next week or so following the powerful quake earlier Monday near the Chishima trough.

U.S. President Donald Trump said U.S. negotiators will be in Pakistan Monday to resume talks on ending the war with Iran, as he again threatened to destroy its power plants and bridges if no deal is reached.

In a social media post Sunday, Trump also accused Iran of violating the countries' two-week ceasefire with attacks Saturday in the Strait of Hormuz.