Antonio Guterres called on Israel to give "total, unfettered" access to humanitarian aid in Gaza.
The attack on a concert hall in Moscow raises difficult questions for Putin at a time of global mistrust.
The attack on a concert hall in Moscow raises difficult questions for Putin at a time of global mistrust.
Four of 11 people arrested were directly involved in one of the worst attacks in Russia in years, officials say.
People initially thought they heard firecrackers, but they soon realised they were under attack.
People initially thought they heard firecrackers, but they soon realised they were under attack.
The BBC's Steve Rosenberg visits the Moscow concert hall where more than 100 were people were killed.
The Senate has agreed to vote for a $1.2tn package that will fund the US government.
The US is cranking every lever to turn this crisis into a long-lasting peace. But is it an impossible dream?
The US is cranking every lever to turn this crisis into a long-lasting peace. But is it an impossible dream?
BBC Verify examines video taken by those caught up in the attack on the Crocus City Hall theatre outside Moscow.
The new term has begun, but secondary school remains closed to girls for another academic year.
Record levels of crime are driving more and more people to buy firearms to protect themselves.
Ri, Zo, Sim, and Suchi are members of India's first mainstream girl group in over 20 years.
Ri, Zo, Sim, and Suchi are members of India's first mainstream girl group in over 20 years.
The new term has begun, but secondary school remains closed to girls for another academic year.
Record levels of crime are driving more and more people to buy firearms to protect themselves.
Ri, Zo, Sim, and Suchi are members of India's first mainstream girl group in over 20 years.
Trump's social media firm has been acquired - a deal that could produce a windfall as he fights legal penalties.
Footage shows people taking cover inside the venue as multiple shots are heard.
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