CNN CNN International April 2, 2015 07:56:00
>> reporter: saudi arabia is saying that they're trying to avoid civilian casualties. they've also mentioned corridors for civilians to take. over 60 children have been killed in the fighting. there was also an air strike on a refugee camp that killed over 20 people there. human rights watch has expressed concern about this. they're worried that this will set some sort of precedent. that this could -- we could see more of these actions as this war progresses. they also have wondered if there have been any war crime violations on that hit on the camp. there's a lot of concern about the safety o...