On 26 September a civilian convoy accompanied by a military escort sought to resupply the besieged city of Djibo in northern Burkina Faso.
Access routes into the city have been controlled by Al-Qaeda linked militant group Jama’at Nasr al-Islam wal Muslimin (JNIM) since the beginning of 2022, causing thousands of people to become food-insecure and leaving the city’s inhabitants dependent on escorted convoys and air drops for food and medicine.
However, when the convoy reached within 25 kilometres of Djibo, it was ambushed and at least 27 soldiers and 10 civilians were killed. The JNIM claimed responsibility for the attack and posted footage on social media that allegedly showed the incident and its aftermath.
The Burkinabè army was accompanying the convoy when it was attacked. Several days after the ambush military commander Ibrahim Traoré staged a coup and took control of the country and pledged to improve the security situation.
Using satellite imagery Bellingcat has counted 95 vehicles destroyed in the convoy attack, stretching across more than five kilometres of highway. Combining it with footage, we were also able to geolocate a number of the destroyed vehicles on the highway.
The ambush reportedly took place in a remote area on the N22 road near the town of Gaskindé in the country’s Sahel Region.
A truck driver who survived the attack told France 24 that he initially hid under his truck when the shooting started, but then the vehicles began to catch fire.
In the footage posted by JNIM, dozens of burnt out trucks can be seen along a road.
However, geolocating the vehicles in the footage was tricky because of the limited number of distinguishing features in the semi-arid, rural landscape.
After Héni Nsaibia, a researcher for ACLED and Menastream, contacted Bellingcat asking if we had access to satellite images that could show the remains of the vehicles, Bellingcat sought to gauge whether such imagery could provide further details.
A Sentinel-2 image taken five weeks after the attack showed there was significant discolouration on a stretch of the N22 that could be the remains of vehicles, at coordinates 13.899898477602783, -1.654384743523484.
Image slider: Sentinel-2L2A satellite image with infrared false colour captured on September 26 at 10:47am (local) time and Sentinel-2L2A satellite image with infrared colour captured on October 31. Credit: European Union, contains modified Copernicus Sentinel data 2022, processed with EO Browser.
Notice the black marks in the October 31 image that were not there at 10:47am on September 26.
With the hypothesis that this was where the convoy was attacked in mind, we tasked a Planet satellite to see if we could obtain more detailed images of the area.
Not only did the Planet image show that our hypothesis was correct, it allowed us to verify the video posted by JNIM and confirm it was shot at the scene of the September 26 ambush.
It must be noted that it was not possible to match all 95 vehicles that we counted using the satellite imagery with the vehicles in the footage.
The footage featured a number of jump cuts and did not film continuously along the whole five kilometre stretch of highway.
However, the satellite imagery does show the scale of the attack, which is hard to grasp with footage alone.
For a richer explanation of how we matched video and satellite imagery see the drop down box below.
Since the convoy attack, humanitarian groups working in Djibo have warned that conditions in the city have continued to deteriorate with ongoing shortages of food and medicine and Burkina Faso has continued to struggle with insecurity in the Sahel Region.
Almost a month after the attack on the convoy JNIM claimed responsibility for another attack in the area; an army base on the outskirts of Djibo which killed at least 10 soldiers and injured dozens.
Credit: Satellite Imagery from Planet Labs, stills from footage and graphic by Logan Williams.
Carlos Gonzalez contributed to this report. We thank @Menastream for pointing us to the location of the highway attack.