Donald Trump threatens to retake Panama Canal and makes fresh ...

Donald Trump has threatened to retake control of the Panama Canal - accusing Panama of charging excessive rates to use the crucial trade passage and warning of potential Chinese influence.

The US president-elect has also renewed his call for the US to buy Greenland from Denmark.

In announcing Ken Howery as his ambassador to Denmark, Mr Trump wrote on Truth Social: "For purposes of national security and freedom throughout the World, the United States of America feels that the ownership and control of Greenland is an absolute necessity."

But the island's Prime Minister Mute Egede has hit back, insisting Greenland was not for sale.

Mr Egede said: "Greenland is ours. We are not for sale and will never be for sale. We must not lose our long struggle for freedom."

The world's largest island, which sits between the Atlantic and Arctic oceans, is 80% covered by an ice sheet and is home to a large US military base. Greenland gained autonomy from Denmark in 1979.

Mr Trump previously called for the US to buy the island during his first term in office.

'We're being ripped off at the Panama Canal'

The president-elect's outburst about the Panama Canal has also sparked a row with the leader of the Central American country, who defended the canal's independence.

Speaking to a crowd in Arizona, Mr Trump said he would not let the canal - which has been under Panamanian control for decades - fall into the "wrong hands".

"Has anyone ever heard of the Panama Canal?" Trump asked supporters at AmericaFest on Sunday.

"Because we're being ripped off at the Panama Canal like we're being ripped off everywhere else."

A critical waterway for world trade, the canal connects the Atlantic and Pacific oceans and allows ships to avoid lengthy and hazardous journeys around the southernmost tip of South America by cutting through the middle of the Americas.

After the ambitious project was opened in 1914, the canal and surrounding territory were controlled by the US until an agreement with Panama in 1977 paved the way for it to return to full Panamanian control in 1999.

"It was given to Panama and the people of Panama, but it has provisions," Mr Trump said. "If the principles, both moral and legal, of this magnanimous gesture of giving are not followed, then we will demand that the Panama Canal be returned to us, in full, quickly and without question."

It's not clear how Mr Trump would go about reasserting US control over the canal.

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Panama's President Jose Raul Mulino said his country's independence was non-negotiable and that China had no influence on the canal's administration.

China does not control the canal but a subsidiary of Hong Kong-based CK Hutchison Holdings has long managed two ports at the canal's Caribbean and Pacific entrances.

"Every square metre of the Panama Canal and the surrounding area belongs to Panama and will continue belonging (to Panama)," Mr Mulino said in his statement, which was released on social media.

Mr Trump then responded: "We'll see about that!"

Mexico's President Claudia Sheinbaum expressed her support for Panama's government after Mr Trump's remarks.

"Indeed, the Panama Canal belongs to the Panamanians," she during her regular morning press conference.

The Panama Canal allows up to 14,000 ships to cross each year and accounts for some 2.5% of global seaborne trade.

In recent weeks, Mr Trump has repeatedly mused about turning Canada into a US state.