Israeli air strikes killed dozens of Palestinians at both ends of the Gaza Strip overnight, hitting the area around Al Shifa hospital in the north and Rafah on the southern edge where more than a million people have sought shelter.

“A new massacre against the families of Abu Suhail Abu Haseera, his children and grandchildren, totalling around 30 people,” family member Abu Ali Abu Haseera said in a text message to Reuters.

In the south, where more than half of Gaza’s 2.3 million people are sheltering in Rafah against the border fence with Egypt, health authorities said 18 people including eight children were killed in a strike on the Abu Nqaira family home.