Two police sites struck
At about 9 a.m., attackers detonated explosives at the national police headquarters and the police academy in N'Djamena. Reuters' first report counted at least 27 people killed and more than 100 injured, describing the explosions as the first attack of that kind in Chad's capital.
Later reports used a death toll of 38. That figure appeared when Boko Haram claimed responsibility in July. Because contemporary reports did not converge on one victim count, this archive preserves both figures.
The dead and injured included police personnel and civilians. Public casualty reports also differ on whether attackers were included in headline totals.
A regional war reaches the capital
Earlier in 2015, Chadian forces had entered northeastern Nigeria as part of a regional campaign against Boko Haram. The June bombings brought that conflict directly into N'Djamena, which had not experienced a comparable suicide attack.
The context explains why authorities immediately suspected Boko Haram, but suspicion was not proof. The group did not publicly claim the bombings until weeks later.
Boko Haram's claim
On July 8, monitors reported that Boko Haram, using the Islamic State West Africa Province name, claimed the attacks and published images it said showed the bombers. The claim used a toll of 38.
A claim by an armed group is evidence of asserted responsibility, not a judicial finding about every operational participant. The suicide attackers died at the scenes, and the public record does not identify every planner, financier or facilitator.
Raids and arrests
Authorities conducted raids after the bombings. On June 27, another explosion during a police operation in N'Djamena killed police officers and suspected militants. Officials announced arrests and said a cell linked to the June 15 attacks had been dismantled.
That raid is part of the investigation, not a second page counted as the same crime. This dossier is limited to the coordinated June 15 bombings and the accountability process that followed.
Trial, convictions and executions
On August 28, 2015, a court convicted ten defendants of offences reported to include murder and use of explosives. Bahna Fanaye, also reported as Mahamat Moustapha, was described by officials as a Boko Haram leader. All ten were executed by firing squad the next morning.
The available reporting does not establish that every convicted defendant personally carried out the suicide bombings. The convictions therefore cannot assign a specific operational role to each man beyond the offences the court found.
Why the proceedings remain contested
The trial and executions came after Chad restored the death penalty for terrorism offences. Human-rights concerns focused on the speed of the process, the absence of a meaningful appeal and the immediate carrying out of the sentences.
Those objections do not erase that a court entered convictions. They do mean a formal legal result must be distinguished from a process accepted as reliable by all observers.
Current assessment
The attack is classified as solved in a limited sense: the responsible organization claimed it, the suicide bombers died at the scenes and courts convicted alleged members of the network. It remains partial because the public record does not supply a complete, independently tested account of the planners and facilitators.
No source reviewed through September 20, 2026 justified treating every executed defendant as a proven material perpetrator of the June 15 bombings.
Questions still unanswered
- What is the reconciled count of victims, excluding attackers?
- Who selected the targets and coordinated the timing?
- What evidence linked each defendant to the June 15 operation?
- Why was no effective appeal completed before the executions?
- Which members of the network remained unidentified?
Frequently asked questions
What happened on June 15, 2015?
Near-simultaneous suicide bombings struck police headquarters and a police training school.
How many people died?
Early Reuters reporting counted at least 27 victims; later reporting used 38. The discrepancy remains explicit.
Who claimed responsibility?
Boko Haram, using the Islamic State West Africa Province name, claimed the attacks in July 2015.
Was anyone convicted?
Ten defendants were convicted in August 2015 and executed the next day.
Why is the case only partially solved?
The claim and convictions do not provide a complete, independently tested account of every planner, facilitator or defendant's role.