A Colombian judge on Saturday ordered an end to house arrest for former president Alvaro Uribe, who is under investigation for alleged witness tampering and fraud.

The conservative Uribe, 68, is considered the most influential politician in Colombia of this century, and is currently its most popular one and the political mentor of the current president, Ivan Duque.

Uribe served from 2002 to 2010 and was known for his tough approach to fighting leftist FARC guerrillas and later for opposing an historic 2016 peace accord with them that ended a half century of war.

The Supreme Court had placed him under house arrest in August in a case involving a leftist senator, Ivan Cepeda, who Uribe said hatched a plot to falsely link him to right wing paramilitary groups -- one of the players that fought in Colombia's long, complex war. Uribe was accused of manipulating a witness against Cepeda.

A man walks past a mural with an image of former Colombian President (2002-2010) Alvaro Uribe, in Bogota on August 21, 2020
A man walks past a mural with an image of former Colombian President (2002-2010) Alvaro Uribe, in Bogota on August 21, 2020 AFP / Juan BARRETO

On Saturday a lower court judge accepted a defense motion for Uribe to be released from house arrest while the probe continues.

The former president, who had been serving as senator until resigning from the post in August, responded with a terse tweet: "Thank God."

Uribe was the first former Colombian president ever placed under arrest. A day before being placed in detention, he tested positive for the coronavirus.

US President Donald Trump welcomed word of Uribe's release and noted that in 2009 Uribe received the Presidential Medal of Freedom, the highest civilian honor handed out in the US, for his efforts to bring peace to Colombia.

In allusion to the leftist governments of Cuba and Venezuela, Trump called Uribe "an ally of our Country in the fight against CASTRO-CHAVISMO!"