ASUNCION Ė Paraguayan police on Tuesday searched three homes near the border with Brazil while investigating the murder of journalist Pablo Medina and his assistant, Antonia Almada.
Law enforcement agents deployed in Ypehu, a municipality in the northwestern province of Canindeyu, where Medina, 53, and Almada, 19, were murdered last Thursday.
The Attorney Generalís Office said one of the houses was the residence of a person believed to be associated with Ypehuís missing mayor, Vilmar Acosta, who is wanted for questioning in the case.
Police also searched the residence of Fabian Acosta, a relative of the mayor being sought by authorities.
Officers seized four cellular phones that will be analyzed, the AGís office said.
Paraguayan and Brazilian authorities are cooperating in the search for Mayor Acosta and brother Wilson Acosta, who has been identified by witnesses as one of the shooters.
On Monday, the Paraguayan AGís office said that both Acostas might have crossed the border into Brazil.
Medina, a correspondent for Asuncionís ABC Color newspaper, and Almada were shot and killed while traveling by car near Ypehu. The only survivor of the attack was Almadaís sister, Juana Ruth.
Medina had received several threats as a result of his reports on marijuana trafficking in the region and alleged connections between smuggler and some local politicians.
Despite the threats, Medina was traveling without police protection at the time of the attack, Reporters Without Borders said Monday.