Mr Makled alleged that Venezuelan officials helped his trafficking operations, charges they denied.

Colombia's President Juan Manuel Santos had promised Venezuela that Mr Makled would be returned.

Mr Santos said the Venezuelan extradition request had arrived before the one from the US authorities.

Mr Makled, wearing a dark suit and in handcuffs, was handed over to Venezuelan officials at Bogota airport on Monday morning local time and flown back to Venezuela.

Mr Makled, known as The Turk, was a successful businessman in Venezuela whose family owned an airline, a transport company and several warehouses.

He went into hiding in 2008 when his brothers were arrested after large quantities of cocaine were found at a family ranch. He was arrested in Colombia last August.

The US authorities say he was one of the biggest drug traffickers in the world.

In Venezuela, he is also wanted for the murder of a journalist and a Colombian drug lord.

He has denied the charges, saying the authorities framed him in order to seize his businesses.

Mr Makled's case became a political issue in Venezuela when he alleged in interviews from prison that he paid millions of dollars to senior figures in the government.

Officials dismissed his claims as an attempt to avoid prosecution.