A car packed with explosives has exploded in a supermarket car park in Colombia's capital injuring at least 60 people.
Police blamed the attack on Marxist FARC rebels, saying the target appeared to be a small police station close by and not the more distant supermarket. The police station escaped serious damage.
Police said no officers were injured and none of the civilian victims were in critical condition.
The Bogota police chief offered a reward of about $18,000 for information leading to the arrests of the bombers.
The rebels were also blamed for an October car bomb outside Bogota's police headquarters, which killed two people and injured 36 others. In that case, an adjoining, private car park was used in the attack.
International Monetary Fund chief Mr Horst Koehler was meeting Colombian President Alvaro Uribe in Bogota just as the bomb detonated.
Mr Koehler gave his backing to Mr Uribe's tough security agenda, which calls for $1 billion in defence spending increases to stem a fallout from a war that has claimed 40,000 lives in the past decade.