Arabic news agency Aljazeera reports that ISIS (or ISIL) has claimed it’s first attack in Congo as three people (two Congolese soldiers and a civilian) were killed in a gunfight near Beni.   ISIS further declared the area to be the “Central Africa Province” of the “caliphate”.

https://www.aljazeera.com/news/2019/04/isil-claims-dr-congo-attack-190419064213626.html

Previous and extensive reports of Islamic terrorism in the area have centred on a group known as the ADF.  In all probability, the recent attack was conducted by ADF but ISIS is taking credit due to their additional assistance to the ADF in some manner.