Thousands of Colombians took to the streets of Bogota on Sunday to march in support of the national police force after a car bomb attack at a police academy killed 21 people and wounded 70 on Thursday. The National Liberation Army (ELN) has been blamed for the attack — the deadliest Colombia's seen in 15 years. Authorities say a pick-up truck laden with 80 kgs (176 lbs) of explosives was driven... Еще into a wall of the General Santander police academy. Colombia's President Ivan Duque, wearing a police hat in solidarity, was spotted at the protest. The president suspended peace talks with the ELN last year and has asked Cuba to extradite 10 ELN leaders since Thursday's attack.