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Stock markets gained Tuesday as investors geared up for the US Federal Reserve's policy meeting and earnings from tech titans, which will be pored over for signs of AI momentum.

Greek investigators on Tuesday were looking into the causes of a fire that killed five workers at a biscuit factory in the country's worst industrial accident in years.

More than half a million Americans woke up without power Tuesday, as freezing temperatures gripped swathes of the country in a monster storm that has killed at least 30 people.

Spain's historically stubborn unemployment fell below 10 percent in the fourth quarter of last year, official data showed on Tuesday, a first since the 2008 financial crisis.

Elina Svitolina said she hopes her stunning upset of third seed Coco Gauff at the Australian Open on Tuesday will bring "a little light" to her fellow Ukrainians during a bitter winter under attack by Russia.

A US 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.

Coco Gauff said Tuesday an epic racquet smash after losing heavily to Elina Svitolina at the Australian Open was important to let out her frustration and was disappointed it was caught on camera.

Germany is offering a one million euro ($1.2 million) reward for information leading to the arrest of suspected far-left militants whose arson attack caused a massive blackout in Berlin, the interior minister said Tuesday.

A branch of the US Immigration and Customs Enforcement (ICE) will help with security for the Winter Olympics in Italy, it confirmed Tuesday, sparking anger and warnings they were not welcome.

At the start of "American Doctor," a new documentary about US medics working in hospitals in the Gaza Strip during the Israel-Hamas war, director Poh Si Teng initially declines to film pictures of dead Palestinian children that one of the doctors is trying to show her.

Coco Gauff folded in 59 error-strewn minutes as Ukraine's Elina Svitolina set up an Australian Open semi-final against Aryna Sabalenka on Tuesday, while Alexander Zverev served up a storm to blast into the last four.

Investigators in Greece on Tuesday were looking into the causes of a fire that killed five workers at a biscuit factory in the country's worst industrial accident in years.

Chinese athletic goods giant Anta Sports will buy a controlling stake in historic German sportswear brand Puma for $1.79 billion, a stock exchange filing showed Tuesday, as it expands its international presence.

Elina Svitolina stunned American third seed Coco Gauff to sail into an Australian Open semi-final against Aryna Sabalenka on Tuesday and inch closer to a maiden Grand Slam title.

The global rule of law is frequently coming under threat, the president of the International Criminal Court warned on Tuesday, vowing to stand up for justice and victims of atrocities.

A US-based rights group said Tuesday it had confirmed the deaths of over 6,000 people in protests in Iran suppressed by security forces, adding it was investigating over 17,000 more potential deaths and warning a wave of arrests was ongoing.

Some federal immigration agents will leave Minneapolis Tuesday, the city's mayor said, as US President Donald Trump struck a conciliatory note after nationwide outrage over the killings of two American citizens.

Stock markets rallied Tuesday following Wall Street's healthy lead, with tech firms leading Seoul to another record as investors brushed off Donald Trump's threat to hike tariffs on South Korean goods.

Japanese Prime Minister Sanae Takaichi said the alliance between Tokyo and Washington would collapse if Japan failed to act in the event of an attack on the US military during a conflict in Taiwan.

Alexander Zverev said he was playing without pain for the first time in 12 months after last year's runner-up crushed young American Learner Tien to blast into the Australian Open semi-finals on Tuesday.

A British tour agency plans to host an international golf event in North Korea this year, the amateur event's website showed Tuesday.

Hybrid-electric vehicles dethroned purely petrol-powered cars as the top power option among consumers in Europe last year, data showed Tuesday.

India and the European Union announced Tuesday the "mother of all deals", a huge trade pact to create a market of two billion people, reached after two decades of negotiations.

Palanca felt the full horror of the war in neighbouring Ukraine one December day.

Aryna Sabalenka overcame searing heat and one of the most exciting talents in tennis to power into the Australian Open semi-finals on Tuesday, with Alexander Zverev serving up a storm to join her.

In drought-hit northeastern Kenya, villagers have been forced to drag their dead livestock to distant fields for burning to keep the stench of death and scavenging hyenas away from their homes.

Four years on from an Olympic snub, US figure skater Ilia Malinin has revolutionized his sport in a meteoric rise that has him poised for gold -- and stardom -- at the Milan-Cortina Winter Games.

Napoli are on the brink of being eliminated from the Champions League as the troubled Italian club face Chelsea on Wednesday racked by a deep injury crisis and a faltering Serie A title defence.

Teaching children how to milk cows, combat food waste or embroider linen are among the programmes on sustainability offered at a charity founded by King Charles III two decades ago.

Last year's runner-up Alexander Zverev served his way into the Australian Open semi-finals on Tuesday as he crushed young American Learner Tien under a barrage of aces.

Teenage sensation Iva Jovic hailed Aryna Sabalenka as "inspiring" after the world number one taught the 18-year-old a tennis lesson in the Australian Open quarter-finals on Tuesday.

Two popular pandas are set to leave Tokyo for China Tuesday, leaving Japan without any of the beloved bears for the first time in 50 years as ties between the Asian neighbours fray.