Leaders of the G7 global powers, including U.S. President Donald Trump, on Tuesday reaffirmed their "unwavering support for Ukraine" in a statement on the fourth anniversary of Russia's invasion.

The UK government on Tuesday announced its "biggest sanctions package" against Russia since ones imposed straight after Moscow's invasion of Ukraine four years ago, targeting oil exports and military equipment suppliers.

Marking the anniversary of the invasion, London announced nearly 300 new sanctions as foreign minister Yvette Cooper visited Kyiv.

More than a dozen senior European officials arrived in the Ukrainian capital on Tuesday in a show of support on the fourth anniversary of Russia's all-out invasion of Ukraine — a grim anniversary in a war that has killed tens of thousands of people and put European leaders on edge about the scale of Moscow's ambitions on the continent.

Ukrainian President Volodymyr Zelenskyy said his country has withstood the onslaught by Russia's bigger and better equipped army, which over the past year of fighting captured just 0.79% of Ukraine's territory, according to the Institute for the Study of War, a Washington-based think tank.

France's spat with the U.S. ambassador to Paris took another turn Tuesday with the French foreign minister saying the top U.S. diplomat in France must explain himself after ignoring a French summons.

The minister suggested that Ambassador Charles Kushner won't have access to French government officials until he complies.

More than a dozen civilians were killed after being lured from their homes by fighters allied to South Sudan 's government under the pretense of being registered for humanitarian food aid, according to two people who survived the attack.

The killings took place on Saturday morning in the village of Pankor, in Ayod County, in the conflict-hit Jonglei State, about 250 miles (400 kilometers) north of the capital, Juba. Women and children were among the victims.

European Union diplomats scrambled Monday to overcome Hungary's veto threats as they seek to finalize new sanctions on Russia and a massive new loan for Ukraine.

EU foreign policy chief Kaja Kallas said the bloc's 27 foreign ministers gathering in Brussels would likely not agree on the 20th package of sanctions targeting Russia's shadow fleet and energy revenues, which it hoped to pass ahead of the fourth anniversary Tuesday of Russia's all-out invasion of Ukraine — a war that has left perhaps 1.8 million dead, wounded or missing.

A packed bus on its way to Nepal's capital drove off a mountain highway in Nepal early Monday, killing 19 people including a British national and leaving another 25 wounded.

There were dozens of people on board the bus, which was heading from the resort city of Pokhara to Kathmandu when it drove off the Prithvi highway after midnight, police said. The bus rolled down a mountain slope and landed on the banks of Trishuli river near Benighat, about 80 kilometers west of the capital, Kathmandu.

The Mexican army announced Sunday that it had killed powerful drug lord Nemesio "El Mencho" Oseguera in an operation that sparked a wave of violence in various parts of the country.

Iran said Monday that any U.S. attack, including limited strikes, would be an "act of aggression" that would precipitate a response, after President Donald Trump said he was considering a limited strike on Iran.

"And with respect to your first question concerning the limited strike, I think there is no limited strike," foreign ministry spokesman Esmaeil Baqaei said at a briefing in Tehran attended by an AFP journalist.

An armed man drove into the secure perimeter of Mar-a-Lago, President Donald Trump's resort in Palm Beach, Florida, before being shot and killed early Sunday morning, according to a spokesman for the U.S. Secret Service.

Although Trump often spends weekends at his resort, he was at the White House when the breach occurred around 1:30 a.m.