Colombia's most wanted drug lord Otoniel captured
The US had placed a $5m bounty on the head of Dairo Antonio Úsuga, better known as Otoniel.
Colombia's most wanted drug trafficker and the leader of the country's largest criminal gang has been captured.
Dairo Antonio Úsuga, better known as Otoniel, was seized after a joint operation by the army, air force and police on Saturday.
The government had offered a $800,000 (£582,000) reward for information about his whereabouts, while the US placed a $5m bounty on his head.
President Iván Duque hailed Otoniel'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.
But his location at the time of his capture was pinpointed two weeks ago, El Tiempo newspaper said.
Police chief Jorge 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, quoted by AFP news agency, 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, but until now none have been successful.
How powerful is the Gulf Clan?
Otoniel become the head of the Gulf Clan, previously known as the Usuga Clan, after its previous leader - his brother - was killed by police in a raid on a New Year's Eve party almost 10 years ago.
Colombia's security forces labelled the gang as the country's most powerful criminal organisation, while authorities in the US describe it as "heavily armed [and] extremely violent".
The gang, which operates in many provinces and has extensive international connections, is engaged in drug and people smuggling, illegal gold mining and extortion.
It is believed to have about 1,800 armed members, who are mainly recruited from far-right paramilitary groups. Members have been arrested in Argentina, Brazil, Honduras, Peru and Spain.
The gang controls many of the routes used to smuggle drugs from Colombia to the US, and as far away as Russia.
The Colombian government, however, believes it has decimated its numbers in recent years, forcing many leading members to hide in remote regions in the jungle.
Otoniel now faces a number of charges, including sending shipments of cocaine to the US, killing police officers and recruiting children.
He was indicted in the US in 2009, and faces extradition proceedings, which could see him eventually appear in court in New York.