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.

At least 31 Palestinians were fatally shot on their way to an aid distribution site in the Gaza Strip on Saturday, while Israeli airstrikes killed at least 28 Palestinians including four children, Palestinian hospital officials and witnesses said.