Palestinians gather on Monday at the site of an Israeli strike in Rafah. EYAD BABA Eya/AFP via Getty ImagesAn Israeli strike in Rafah that left dozens of civilians dead is “heartbreaking,” a National Security Council spokesperson said on Monday, adding the US was “actively engaging” with officials in Israel to determine what precisely happened.”The devastating images following the IDF strike in Rafah last night that killed dozens of innocent Palestinians are heartbreaking,” the spokesperson, who went unnamed, said in a statement. “Israel has a right to go after Hamas, and we understand…