Colombia has suspended peace talks with the National Liberation Army, or ELN, for second time in less than a year after blaming the rebel group for violence that has been affecting a northeastern region of the country in recent days.

Colombian President Gustavo Petro suspended peace talks with the leftist National Liberation Army (ELN) on Friday, after accusing the group of committing a war crime in the Catatumbo region, in the country's Norte de Santander province.

At least 80 people were killed in northeast Colombia following failed attempts at peace talks with the National Liberation Army, a Colombian official said.