Gaza (CNN) -- An Israeli airstrike on a house in Gaza overnight killed three high-ranking members of Hamas' military wing, the Qassam Brigades, the militant group said Thursday. Seven civilians were also killed. The three members of the Brigades' 15-member military council were killed in a bombing in Rafah in southern Gaza, according to Hamas. The announcement of their deaths comes the day after Hamas said an Israeli strike had killed the wife and at least two children of Mohammed Deif, the head of the military wing. Deif's 7-month-old son was killed, and the body of one of his daughters was removed from the rubble later, according to Hamas. Another of Deif's daughters is missing and believed to be buried in the rubble. The strike failed to kill Deif, Hamas said.
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NEW: An Israeli airstrike hits people digging a grave in a cemetery, health officials say
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Hamas says a bombing in Rafah kills 3 senior leaders of the Qassam Brigades
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Israel says two of the dead were responsible for "major terror attacks against Israelis"
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One of them played a "major role" in the capture of an Israeli soldier in 2006, the IDF says
"We will strike those that have terrorized our communities, towns and cities, we will pursue the perpetrators of abduction of our soldiers and teenagers, and we will succeed in restoring security to the @placeholder."
But the two sides failed to reach a compromise, with Israel calling for @placeholder to be demilitarized and Hamas requesting, among other things, the lifting of Israel's economic blockade on Gaza.