Bogotá, February 27 (RHC) -- Colombian President Juan Manuel Santos Wednesday condemned an attack on a supermarket in northwestern Colombia, which killed four people and injured 17 others.

"Our solidarity is with Quibdo and the relatives of the victims of last night's terrorist attack," Santos said via his Twitter account.

The perpetrator of the attack was arrested by the police, Santos said.

An explosive device tore through a supermarket in Quibdo, capital city of Choco Department in northwest Colombia late Tuesday. The fatal victims included the daughter of the store's owner, and three male employees, and the injured were hospitalized in a hospital in Quibdo, the police said.

The police also said they are investigating the possible involvement of armed groups related to the Revolutionary Armed Forces of Colombia (FARC) and the Urabenos militia.