A journalist from the news agency saw three soldiers pushing the bodies that fell out of sight.
The Israeli military (IDF) states that the incident is being investigated.
"This is a serious incident that does not conform to IDF's values and expectations of IDF soldiers," the military says in a statement.
According to international law, soldiers must ensure that dead bodies are treated with dignity, even those of combatants.
According to the IDF, four militants were killed in the raids.
Over 700 Palestinians have been killed by Israeli fire on the West Bank since the war broke out after the Hamas terror attack on October 7, according to Palestinian authorities.