Burundi Police: Rwanda Lake Cohoha Incursion Sparks Border Clash

• On September 1, 2020, Burundian and Rwandan forces exchanged fire on Lake Cohoha following an alleged incursion by Rwandan soldiers.
• The incident began when Rwandan Navy soldiers reportedly pursued Burundian children fishing across the maritime border into Burundian territory.
• Burundian police and army intervened, leading to warning shots from Burundi and return fire from Rwandan soldiers before their withdrawal.
• No casualties or significant material damage were reported, and the children involved were later found safe.
• The incident highlights ongoing tensions and border demarcation challenges between Burundi and Rwanda, which have a history of mutual accusations and a currently closed land border.

The incident, which occurred around 5:30 p.m. near Cimo village in the Kiri zone of Kirundo, Butanyerera Province, was triggered by an alleged incursion by Rwandan soldiers into Burundian territory.

A confrontation involving gunfire erupted on the evening of Monday, September 1, 2020, between Burundian and Rwandan forces on Lake Cohoha, situated in northern Burundi. The incident, which occurred around 5:30 p.m. near Cimo village in the Kiri zone of Kirundo, Butanyerera Province, was triggered by an alleged incursion by Rwandan soldiers into Burundian territory. According to the Burundi National Police (PNB) and local reports, the sequence of events began when children fishing on the lake inadvertently crossed the maritime border.

Rwandan Navy soldiers reportedly pursued these children, subsequently crossing into Burundian waters themselves. A local source, speaking anonymously, confirmed that the children had entered the lake's border area, prompting the Rwandan soldiers to give chase. These Rwandan personnel are said to have remained on the Burundian side for approximately an hour. During this period, a patch of vegetation near the border was reportedly set ablaze, though the precise cause of this fire remains unconfirmed.

Upon being alerted, Burundian police and military units swiftly intervened to repel the Rwandan soldiers. Burundian forces reportedly fired warning shots first, to which the Rwandan soldiers allegedly responded with gunfire before retreating back into Rwandan territory. Local residents reported hearing multiple gunshots, causing widespread fright and leading some to temporarily evacuate their homes. Despite the exchange, no prolonged engagement occurred, and critically, no casualties or significant material damage were reported. The children who initially sparked the incident were later located, having reached the shore and reunited with their families, while the temporarily displaced population gradually returned to their residences once calm was restored.

This particular cross-border incident on Lake Cohoha in 2020 highlights an ongoing challenge in the region: the inherent difficulty in demarcating the maritime boundary between Burundi and Rwanda. Local sources indicate that such events are not uncommon in this area, primarily because the precise line separating the two countries on the lake is exceptionally hard to discern. This ambiguity poses a significant problem for local communities, particularly fishermen, who rely on the lake for their livelihoods.

Fishing is a vital economic activity for residents living along Lake Cohoha. However, the indistinct nature of the border means that fishermen can inadvertently cross into the territory of the neighboring country. These unintentional crossings frequently become a flashpoint, leading to tensions with the security forces of both nations, underscoring the delicate balance between local economic needs and national sovereignty in this border region.

The September 2020 Lake Cohoha incident unfolded against a backdrop of deeply strained relations between Burundi and Rwanda. The two East African nations have a history of mutual suspicion and accusations, with each government alleging that the other supports armed groups hostile to its interests. Gitega, the capital of Burundi, has consistently accused Kigali, Rwanda's capital, of providing aid to armed factions opposed to the Burundian government. Conversely, Rwanda has vehemently denied these claims, instead asserting that Burundian authorities are supporting groups operating against Rwandan interests.

These persistent Burundi-Rwanda tensions have manifested in concrete actions, such as Burundi's land border with Rwanda having been closed since January 2024, a move that further underscored the deteriorating diplomatic ties. While the immediate situation on the Burundian shores of Lake Cohoha has since returned to a state of calm, the exact circumstances surrounding the alleged incursion and the subsequent exchange of fire remain to be officially clarified by both sides. This ongoing lack of official resolution leaves the potential for future cross-border incidents to reignite broader regional instability.

This incident highlights the ongoing geopolitical instability and border tensions between Burundi and Rwanda, which could impact cross-border trade, investment, and the security of personnel or assets for clients operating in or near these regions. Lawyers should advise clients on potential political risk assessments and contingency planning, especially concerning border-adjacent operations.

Source: Original reporting via {source}