There is a high threat from terrorism in Colombia, from groups like the FARC (Revolutionary Armed Forces of Colombia) and the ELN (Ejército de Liberaciόn Nacional). The FARC celebrate their 50th anniversary on 1 May 2014. The Colombian Ministry of Defence reports that planned attacks by the FARC and the ELN are possible.
There are continuing indiscriminate attacks, including against public transport, industrial infrastructure (eg oil facilities), public transport, government buildings and other state installations.
The pattern of these attacks means that incidents in public spaces and other areas visited by foreigners can’t be ruled out. Past methods of attack have included car bombs, grenade attacks and explosive devices left in buildings.
In many areas of Colombia, the security situation can change very quickly. You should pay close attention to warnings issued by the Colombian authorities and monitor this travel advice.
In general, the more remote the area, the greater the potential threat to your safety. You should be particularly cautious and vigilant during any major events.