I just read about it and it is bad enough. I’ll paste this quote from someone who was there:

“I swear to God I saw people burning in front of me. By god, no one could do anything. The man, the woman and the little girl burning in front of me, I swear to God. In front of me they burned, in front of me. Their souls left in front of me, in front of us, in front of all our eyes,” said Saleh Al-Jafarawi, an independent Palestinian journalist who filmed the massacre. “No one was able to do anything, no one was able to advance and get them. We tried, but we couldn’t, the fire was so strong that no one was able to advance and pull them out of the fire. They were burned alive. Their bodies were charred. This is a crime that we have never seen and no one has seen like it,” he added in a video posted on his Instagram account. “I swear to God the scenes that will remain in our memories, will remain in our hearts forever. We will never forget the scene that I witnessed today: The scene of the child and he is burning in the heart of the fire and no one was able to help him.”

Be warned that there’s a very disturbing photograph in the source page.