Iran live updates: 7th killed service member is identified

The Human Rights Activists News Agency (HRANA), a U.S.-based group that relies on a network of activists in Iran for its reporting, said in a statement Tuesday night that it has so far documented the deaths of 912 civilians and the injuries of 211 civilians in Iran, as a result of the ongoing U.S.-Israeli military operation.

Among those killed are at least 181 children under the age of 10, according to HRANA.

HRANA said it is reviewing 880 reports of other deaths.

"These figures reflect a devastating and escalating human toll and represent absolute minimums," the group said in the statement. "The protection of civilians is not optional. It is a binding legal obligation."

HRANA said it has also "verified credible reports of attacks on at least seven medical centers and emergency health facilities" in Iran.

ABC News cannot independently verify these numbers or information, but HRANA has been accurate in its reporting during previous periods of unrest and conflict in Iran.

-ABC News' Somayeh Malekian and Morgan Winsor

Israeli Defense Minister Israel Katz warned Wednesday that any new leader appointed by the Iranian regime "will be an unequivocal target for elimination."

A successor to Supreme Leader Ayatollah Ali Khamenei -- who was killed in joint U.S.-Israeli airstrikes on Saturday -- is yet to be publicly announced.

-ABC News' Dana Savir and Morgan Winsor

The Lebanese Health Ministry announced that 50 people have been killed and over 300 have been injured in Israeli strikes since Monday.

The U.S. embassy in Amman, Jordan, announced it is canceling appointments until further notice and has instructed personnel to shelter-in-place.

"The embassy has instructed all Mission personnel to shelter-in-place. We recommend all Americans do the same," the alert on Wednesday said.