Several children were killed in an Israeli airstrike at a water distribution point in central Gaza Sunday, health officials said, one of several deadly incidents in the territory that come as ceasefire talks in Doha falter.

Gaza health officials say Israeli airstrikes have killed at least 19 people including six children at a water collection point.

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.