According to Kijiji Cha Amani:

8 civilians brutally shot last night in Mbau by the alleged ADF, there would be 6 bodies of the pygmies, killed this Saturday morning in Mambalasa by the same alleged ADF. Mambalasa is located a few 2 km from Mbau

The photos that were forwarded have not been verified as being from the same incident.

Here is an audio discussion (en français et Swahili):

 

Slaughter in Beni 2019 Nov 2