Unfortunately there is always collateral damage during a war. If it was hit by us, it was unintentional.

Try looking back at what damage was done in WW2. Whole blocks in cities were wiped out by our bombs. At least our bombs are more accurate than back then. Not to mention how the US nuked Japan and killed thousands of civilians on purpose to end that war.

War is not pretty and there are many people that die in war. At least this time we are seeing less civilian causualties on our side than on Iran's side who IS deliberately targeting civilians.