Ten people were killed in an Israeli airstrike on Gaza on Sunday, including six children who were waiting to fill water containers near a refugee camp, emergency service workers said.

Israel’s military said a “technical error” had caused munition to land dozens of meters from its target. The victims were gathered near a water distribution point, health workers said.

Israeli strikes in the Gaza Strip killed at least 32 people, while the Palestinian death toll passed 58,000 after 21 months of war, local health officials said.