Colombia has announced that the country's most wanted drug trafficker will be extradited to the US after he was captured in a raid.

Dairo Antonio Úsuga, known as Otoniel, was seized after a joint army, air force and police operation on Saturday.

He led the country's largest criminal gang and has been on the US Drug Enforcement Agency's most wanted list for years.

US officials had placed a $5m (£3.6m) bounty on his head.

They accused him of importing at least 73 metric tonnes of cocaine into the country between 2003 and 2014.

Colombia's Defence Minister Diego Molano told El Tiempo newspaper that the next step for officials was to comply with the US extradition order.

Authorities have now taken Otoniel to a military base in the capital Bogotá ahead of his extradition, according to newspaper El Nuevo Siglo.

President Iván Duque hailed the drug lord's capture in a televised video message.

"This is the biggest blow against drug trafficking in our country this century," he said. "This blow is only comparable to the fall of Pablo Escobar in the 1990s."

How was he caught?

Otoniel was captured in his rural hideout in Antioquia province in north-western Colombia, close to the border with Panama.

The operation involved 500 soldiers supported by 22 helicopters. One police officer was killed.

Otoniel had used a network of rural safe houses to move around and evade the authorities, and did not use a phone, instead relying on couriers for communication.

In the past, police have found special orthopaedic mattresses for Otoniel in these sparse homes, as he suffered back pain from a herniated disc.

Police chief Jorge Vargas has said the drug lord was fearful of capture, "never approaching inhabited areas".

But El Tiempo reported that authorities managed to pinpoint the location where he was eventually captured two weeks ago.

Chief Vargas said his movements were traced by more than 50 signal intelligence experts using satellite imagery. US and UK agencies were involved in the search.

Mr Duque described the operation as "the biggest penetration of the jungle ever seen in the military history of our country".

Colombia's armed forces later released a photo showing its soldiers guarding Otoniel, who was in handcuffs and wearing rubber boots.

There have been several huge operations involving thousands of officers to capture the 50-year-old in recent years.

There's no doubt this is seen as a coup by Colombian authorities - they've been trying to capture Otoniel for several years now. The Gulf Cartel is a formidable and violent organisation with a great deal of power.

And the comparisons with Pablo Escobar are understandable. Otoniel is a household name and has been hugely powerful, especially in the north west of the country.

"In South America, there is no larger cocaine trafficker," says Toby Muse, author of Kilo: Inside the Cocaine Cartels. "We are living in the golden age of cocaine, we are producing more cocaine than ever - that's a fact."

But the parallels perhaps stop there - Otoniel is not as well-known outside of Colombia. And speak to people who lived in the country at the peak of Pablo Escobar's power, many feel they were more frightening times.

The question is, will Otoniel's capture impact the trade of the illicit drug? It's hard to know now. We'll have to see what happens in the coming months but most experts seem to think that while demand for cocaine remains strong, it's likely there will be new "capos" rising to the top to replace him.