Israel has indicted Jewish extremists suspected in a July arson attack on a Palestinian home that killed a toddler and his parents.

Sunday's long-awaited indictment follows months of investigations that had failed to produce concrete results. The unsolved nature of the case helped fuel the current wave of Israeli-Palestinian violence.

Court officials confirmed there had been indictments but did not provide further details. They spoke on condition of anonymity because the hearing had not yet concluded and there was a gag order in place.

The arson attack in the West Bank village of Duma killed 18-month-old Ali Dawabsheh. His mother, Riham, and father, Saad, later died of their wounds. Ali's 4-year-old brother Ahmad survived.

The firebombing was condemned across the Israeli political spectrum.