A bomb has exploded in the Chilean capital, Santiago, injuring eight people, three seriously.
It went off at lunchtime in a small underground shopping centre at a busy metro station.
The government says it will use anti-terrorism legislation to find those responsible.
There have been around 200 bomb attacks in Santiago in the past decade with anarchist groups claiming responsibility for many of them.
Police investigators say they believe the device was placed in a rubbish bin. They said they have also identified the car used by the bombers to get away from the scene.
Investigators baffled
Originally written to control left-wing opponents of General Augusto Pinochet during his military government, the anti-terrorism legislation allows for the extended detention of suspects without charge and longer sentences on conviction.
Read more:
http://www.bbc.co.uk/news/world-latin-america-29119724
