According to a spokesperson from the Attorney General's office, almost 23 people have been killed in clashes between rival guerilla groups in Colombia's northern Arauca area.

"We are proceeding with the preliminary figure of 23 victims, but the information is still not [fully] clear. It's very hard to enter the area where the clashes occurred, so these numbers must be handled with care," said Paola Tovar.

Colombia's ombudsman Carlos Camargo said that fighting first erupted between the National Liberation Army- the largest leftist guerilla group in the country known by its Spanish Acronym ELN- the dissident factions of the Revolutionary Armed Forces Colombia, or FARC, in the early hour of January 2.

COLOMBIAN PRESIDENT IVAN DUQUE SAID THAT the ELN and FARC dissident groups, which were formed by rebel fighters who refused to enter the Colombian peace process in 2016, were fighting over the control of illegal economies such as drug trafficking. 

Around 12 families have been displaced because of the violence. Local human rights organizations and Human Rights Watch (HRW) believe the Death toll could rise.

"We are apprehensive about these clashes," Juan Pappier, senior Americas researcher at HRW, said. Pappier told CNN that they have received news that 24 people have been killed, along with reports of "kidnappings and forced displacement."

Duque said the Colombian army would deploy two different battalions with helicopter and intelligence capabilities to restore calm in Arauca. Defense Minister Diego Molano would also travel to the region On Monday Evening.

Colombia's government has accused Venezuelan President Nicolas Maduro of harboring FARC dissidents and ELN combatants; a claim Maduro has reportedly denied.

On Monday, Duque said, "As you know, these groups have been operating freely in Venezuelan territory with the consent and protection of the dictatorial regime."

The FARC and ELN began fighting each other in Arauca, which sits on the border with Venezuela, and in the neighboring Venezuelan state of Apure, in 2006. The fighting stopped in 2010, at which point at least 868 people had been killed, and 58,000 people had been displaced, according to a 2020 HRW report.

Thousands of people flew Apure in March 2021 when the clashes occurred between Colombian armed groups and the Venezuelan Military.