Over 80 people have died and tens of thousands have been displaced in escalating violence between armed groups as the border city of Cucuta scrambled Wednesday to cope with thousands of civilians fleeing the violence.

A fresh outbreak of guerrilla violence amid a faltering peace process in Colombia has left more than 80 people dead, including civilians, and displaced around 11,000 in just four days, officials reported on Sunday.

At least 80 people are dead and more than 18,000 have been forced to flee their homes in Colombia, officials say, amid fierce clashes between two rival armed groups on the border with Venezuela.