Gunfire Incident on Putumayo River Revives Tensions Between Colombia & Peru

Despite the severity of the incident, Colombia and Peru have indicated a willingness to address it through diplomacy

 An incident on April 12, 2026, has reignited diplomatic and security tensions in the Amazon border region between Colombia and Peru, following an exchange of gunfire between a Colombian civilian vessel and the Marina de Guerra del Perú, a Peruvian Navy River unit, on the Putumayo River. The incident left one Colombian citizen dead and one person injured on each side.

The episode occurred near Marandúa (Amazonas, Colombia), across from the Peruvian town of El Estrecho. According to Colombia’s Defense Minister, Pedro Sánchez, the fatal victim was identified “as José Miguel Gutiérrez Baquero, owner of the cargo vessel involved in the incident, and one of his sons was injured,” while two other crew members were detained by Peruvian authorities.

Conflicting accounts of the operation

According to the Peruvian government statement, “the incident occurred during a patrol operation aimed at securing the electoral process,” previously coordinated between the two countries. Authorities said two Navy speedboats requested that the Colombian vessel stop for identification.

Peru’s Ministry of Foreign Affairs, which is leading the process, said that “the Colombian vessel refused to comply with the control order and opened fire on two Peruvian Navy units, which returned fire.” As a result, “a member of the Peruvian Navy was also injured, although he is out of danger.”

Colombian authorities, led by the Foreign Ministry, have requested a full clarification of the events and verification of the circumstances surrounding the exchange of gunfire.

Diplomatic channels activated

Following the incident, the governments of Colombia and Peru activated diplomatic and military channels. Colombia’s defense minister said that “preliminary measures were agreed, including prioritizing medical attention for the injured, facilitating the work of judicial authorities, and establishing a binational commission to investigate what happened.”

Colombia’s Foreign Ministry formally requested clarification of “the circumstances of time, mode and place” of the attack, while the Peruvian government expressed its “willingness to cooperate and maintain border coordination mechanisms.”

The detained individuals “remain in the custody of the Fiscalía Provincial Mixta de Putumayo, with access to consular assistance and due process guarantees.”

So far, no final responsibilities have been determined, and both countries agree on the need for a thorough investigation. Both governments said the issue will be addressed at the next High-Level Mechanism on Security and Judicial Cooperation meeting, scheduled for May 2026 in Bogotá.

Context of prior tensions

The incident comes amid sensitive bilateral relations. In recent months, Colombia and Peru have had disagreements over territorial issues in the Amazon, particularly regarding Santa Rosa de Loreto island.

The dispute dates back to August 5, 2025, when President Gustavo Petro said on X that the “government of Peru has taken over territory that belongs to Colombia” and alleged a “violation of the Rio de Janeiro Protocol, which defines the boundaries between the two countries.”

“The Rio de Janeiro Protocol established that the border is the deepest channel of the Amazon River and that any dispute must be resolved between the parties,” Petro said, referring to the emergence of new river islands “north of the current deepest channel,” which, according to his position, should belong to Colombia.

In response, Peru’s Foreign Ministry expressed its “strongest and most forceful protest,” stating that the island, home to about 3,000 residents, mostly Peruvians, is part of its territory and is key to regional river trade.

Tensions escalated days later when then-presidential pre-candidate Daniel Quintero traveled to the island and raised a Colombian flag during a campaign event broadcast on social media, saying: “I will not allow them to take the Amazon from us. Santa Rosa is Colombia.”

The Peruvian government described the act as an “unnecessary action” that “distracts from the cooperation efforts that Peru and Colombia must prioritize to jointly address urgent challenges.”

Headline photo: President Gustavo Petro, Vice President Francia Márquez and Defense Minister Pedro Sánchez at an event held in Leticia (Amazonas) to address tensions with Peru, Aug. 7, 2025. Photo courtesy of Colombia’s Ministry of Defense.