The Democratic politician took his oath over a Quran in the disused Old City Hall subway station.
Category: World
Two killed in clashes between protesters and security forces in Iran
Videos on social media showed cars set on fire during running battles as protests entered their fifth day.
What we know about the Switzerland ski resort fire
Several dozen people are presumed to have died in the fire at a New Year party in the resort of Crans-Montana.
Social media fuelled Mamdani’s rise. Can he keep the momentum as New York mayor?
To succeed in office he will need to keep his supporters engaged with day-to-day governing, experts say.
New discovery may challenge theory Vikings built first Irish towns – researcher
Dr Dirk Brandherm and his colleagues have identified more than 600 suspected house platforms in the Brusselstown Ring.
Brazil legend Roberto Carlos recovering in hospital
Brazil and Real Madrid legend Roberto Carlos is “recovering well” after undergoing what he describes as “a preventative medical procedure”.
Netherlands police face ‘unprecedented’ New Year’s violence
Reports of fireworks and other explosives being thrown are widespread across the country.
Around 40 dead in Swiss ski resort bar fire
Around 100 are also injured in fire at Crans-Montana Swiss ski resort bar Le Constellation.
Watch: Historic Amsterdam church engulfed by fire on New Year’s Eve
The blaze was thought to have started just after midnight and was swiftly declared a major fire
Anthony Joshua discharged from hospital after Nigeria car crash
Two of the former world champion’s closest friends were killed in the accident on Monday.