Four people, including a baby, have been killed in a bomb attack in western Colombia, according to an official account of the incident.
The explosion appears to have been directed at a military base. However, it is not yet known who carried out the attack or what their motive may have been.
The available information does not provide further details about the location, the circumstances of the blast or any response from the authorities. The identities of those killed have also not been disclosed.
Investigations are expected to focus on establishing who was behind the bombing and confirming the intended target. The latest known position is that responsibility for the attack remains unclear.