Nicolás Maduro appeared in a New York court with his wife, denying charges and calling his detention unlawful. Prosecutors allege the former Venezuelan leader ran a narcotics conspiracy and engaged in corruption. He pleaded not guilty as proceedings continue.

Donald Trump says the US should secure Greenland, describing it as vital for Arctic defence and surveillance. He seeks talks with Denmark on access and investment, possibly an outright purchase or long lease, arguing it would deter rivals and support shipping lanes and polar operations.

Trump signalled action after nationwide unrest in Iran, amid reports of fatalities as security forces used force on crowds. Washington is weighing sanctions and diplomatic pressure, urging authorities to respect rights and warning of consequences for abuses.

A fire at a Swiss ski resort bar during New Year celebrations killed at least 40 people and injured 115. Police say identification may take days as investigators examine reports that pyrotechnics ignited flammable materials. Authorities are supporting victims and families.