The latest travesty the Syrian government has been accused of: using local militias to carry out mass killings. UN human rights investigators say these "Popular Committees" commit killings that sometimes have "sectarian overtones," Reuters reports.

In its new report, the UN commission of inquiry on Syria calls the trend "disturbing and dangerous," noting that some of the militias "appear to have been trained and armed by the government."

The report accuses the Popular Committees of engaging in "house-to-house searches, identity checks, mass arrests, looting, and acting as informants," as well as harassing or arresting people from regions seen as supporting the opposition. It comes amid more violence in Syria: Government warplanes today bombed Homs, after rebels pushed into the Baba Amr district, Reuters reports. More than 2.5 million people have been displaced due to the civil war, according to Bloomberg, and the UN report finds that there are few areas inside Syria unaffected by the conflict.