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.

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.

Civilians caught in the crossfire as ELN guerillas target former members of a separate rebel group in the bloodiest violence in recent years A fresh outbreak of guerilla violence amid a faltering peace process in Colombia has left more than 80 people dead,