<p>BOGOTA, Colombia (AP) — A bomb strapped to a horse exploded in a plaza in a small town in northeast Colombia on Wednesday, killing at least eight people, including a toddler, and injuring 20 others, the army said.</p>
<p>Authorities blamed rebels of the Revolutionary Armed Forces of Colombia, or FARC, for the attack. The rebels have tied bombs to animals, mainly donkeys and horses, in the past.</p>