According to the local media reports, the incident took place on Saturday when two persons on a motorcycle threw an explosive at the police station.
Barranquilla Police commander General Mariano Botero said the bomb detonated as the officers gathered for morning formation.
However, he didn't clarify what kind of explosive was used in the blast.
President Juan Manuel Santos took to Twitter and said, "We will not rest until we find those responsible" for the "cowardly attack."
"Barranquilla surrounds and supports its police", Mayor Alejandro Char said on Twitter. (ANI)