Bogota blast kills two

Police say a bomb blast has killed two people outside a Blockbuster video store in an upper middle-class district of Colombia's capital.

The explosion occurred in an area of northern Bogota where restaurants and retail stores are plentiful.

City police chief Rodolfo Palomino says the bomb appeared to be about 5kg of explosives and was placed in an automatic teller booth adjacent to the store.

Defence Minister Juan Manuel Santos says there's no evidence it was leftist rebels. Some officials say the store had been the object of extortion.