US and coalition airstrikes against the northern Syrian villages of Tokhar and Hoshariyeh have killed at least 56 civilians, including 11 children, according to the Syrian Observatory for Human Rights. Other groups claimed the civilian toll was as high as 200.

The villages are ISIS-held villages near the city of Manbij, which US-backed rebels are attacking. This civilian toll comes less than 24 hours after an incident in which US airstrikes against Manbij itself killed 20 civilians,

The village attacks, however, have really raised eyebrows, and as the death toll is still getting sorted out, it could well stand as the deadliest US coalition attack on civilians in the entire war.