Second bomb explodes in Colombia

Another bomb has exploded in Colombia -- the second in the space of a few hours.

It went off in the city of Medellin, injuring about 10 people.

The bomb had been placed behind the offices of a leading broadcaster, Radio Caracol.

An earlier explosion in the same part of Colombia killed one person and hurt at least 20 - many of them children from a nearby school.

The car bomb was detonated in front of a police station in Marinilla, about 50km from Medellin. Police said that explosion might be connected with rebels of the National Liberation Army (ELN), which began a bombing campaign after the government suspended peace talks earlier this month.

From the newsroom of the BBC World Service