As the United States passes week seven of its expanded war on Iraq, and week two of air strikes across Syria, a critical question remains unanswered: Who exactly is dying in the air bombardments?

Many fear this question will remain unanswered. “I’m concerned that the U.S. is not held to the same standard as other countries when it comes to violating international law and killing civilians,” Raed Jarrar, Policy Impact Coordinator for the American Friends Service Committee, told Common Dreams.

The U.S. military and government have provided virtually no information about civilian and combatant casualties and have denied on-the-ground reports that innocent people are being killed and wounded in the escalating attacks.

But this official version of events is contradicted by mounting reports from Syria. As recently as Monday, the Syrian Observatory for Human Rights announced that overnight U.S. coalition bombings of alleged ISIS positions in northern and eastern Syria took civilian lives, the exact number unspecified. Observatory director Rami Abdurrahman told the Associated Press that a strike on a grain silo in the town of Manbij in Aleppo province “killed only civilians there, workers at the site. There was no ISIS inside.” He added that the bombings “destroyed the food that was stored there.”

The U.S. military on Monday denied the civilian deaths to Reuters but presented no evidence backing its claims. A U.S. Central Command statement released Monday offered no further information about civilian or combatant deaths, stating that air strikes were conducted against a “ISIL vehicles within a staging area adjacent to an ISIL-held grain storage facility near Manbij,” in addition to other targets.

The Observatory is not the only organization to sound the alarm on civilian deaths. Human Rights Watch released a report on Sunday that apparent U.S. missile strikes on Idlib in Syria on September 23 killed at least seven civilians. “Three local residents told Human Rights Watch that missiles killed at least two men, two women, and five children,” reads the report. Video footage from local residents and the Shaam News Network, available on the HRW website, appear to verify that civilians were wounded and killed in the strikes. According to some estimates, as many as 24 civilians were killed in coalition air strikes on this day.

Pentagon Spokesperson Navy Rear Adm. John Kirby denied those civilian deaths as well, again offering no evidence. “This is a pretty remote area of the country, mostly just desert. It’s not — it’s not urban,” he told the Associated Press. “We don’t believe that there’s much reason to be too concerned about any collateral damage, you know, to civilian property, that kind of thing.”