Colombia's President Juan Manuel Santos has been sworn in for a second term of four years amid a renewed wave of rebel violence that has put peace talks at risk.

The 62-year-old economist has promised to end the country's 50-year-old conflict with FARC rebels, but recent attacks have ignited tensions. 

The conflict that has been raging since the 1960's has killed more than 220,000 people and caused more than five million to flee their homes.

Al Jazeera's Alessandro Rampietti reports from Bogota.

Source: Al Jazeera