US President Donald Trump said on Friday he would be disappointed if North Korea were to resume weapons testing and reiterated his belief in his good relationship with its leader, Kim Jong Un, despite the collapse of a summit with him last week.

Rescuers in Alabama on Monday dug through the remnants of homes and businesses destroyed by a spate of tornadoes that killed at least 23 people, including children, the deadliest such storms to strike the United States in almost six years.

The United States sent two Navy ships through the Taiwan Strait on Monday as the US military increased the frequency of movement through the strategic waterway despite opposition from China.

China struck an upbeat note on Monday as trade talks resumed with the United States, but also expressed anger at a US Navy mission through the disputed South China Sea, casting a shadow over the prospect for improved Beijing-Washington ties.

The United States still plans to lead a global fight against the Islamic State movement despite its withdrawal from Syria, Secretary of State Mike Pompeo assured allies on Wednesday.

The Taliban said Sunday it will send a delegation to Russia for a rare meeting with Afghan opposition leaders, just days after peace talks with the United States that excluded the Kabul government.

Moscow on Tuesday condemned as "illegal" sanctions announced by Washington against Venezuela's state oil company and aimed at crippling embattled President Nicolas Maduro's power base.

The United States on Monday announced criminal charges against China's Huawei Technologies Co Ltd, escalating a fight with the world's biggest telecommunications equipment maker which denies wrongdoing, and coming days before trade talks with Beijing.

Lamenting that the American Dream and its democracy are under attack in Donald Trump's United States, California Senator Kamala Harris formally declared Sunday her candidacy to become the country's first black female president in 2020.

A top executive from Huawei Technologies Co Ltd can make a good case against being extradited to the United States, in part due to remarks made by US President Donald Trump, Canada's ambassador to China said in comments broadcast on Wednesday.

Winter winds brought extreme cold and ice-slicked roads to the Midwestern and Eastern United States on Monday, with the US Martin Luther King Jr. Day holiday and an ongoing government shutdown allowing many to heed official advice to stay indoors.

A group of Honduran migrants entered southern Mexico on Friday, joining more than 1,000 people who departed Central America in recent days headed to the United States and putting to the test Mexico's vows to guarantee the safe and orderly flow of people.