Israel's military has cleared its forces of wrongdoing in three deadly incidents of the 2014 Gaza war — including an airstrike that killed 15 members of a single family.

Wednesday's statement says the military has closed a total of seven investigations without filing charges after a special team collected testimony from Gaza residents and Israeli officers.

The army says the building where the family was killed was used by Hamas, the Islamic militant group that rules Gaza, as a command and control center during the fighting. It says it regrets that civilians died but that the strike was in line with international law.

The war killed over 2,200 Palestinians and 73 people on the Israeli side.