WATCH: Pentagon holds briefing as Israeli airstrike on Iran threatens regional tensions

WASHINGTON — The United States military believes Israel carried out the recent airstrike on Iran’s Consulate in Syria and that several senior leaders of the Revolutionary Guard were present.

Watch the briefing in the player above.

Pentagon spokeswoman Sabrina Singh said Tuesday that it is the U.S. assessment that Israel conducted the strike on the Iranian Consulate in Damascus and that “there were a handful IRGC top leaders there.”

Israel, which has repeatedly targeted Iranian officers in Syria and in Lebanon, did not comment on Monday’s attack.

Iran has vowed to respond to the attack that killed 12 people including two Iranian generals and a member of the Lebanese militant Hezbollah group, which is backed by Iran.

Israel, increasingly impatient with months of cross-border fighting with Hezbollah, has warned of the possibility of a full-fledged war.

The U.S. National Security Council said the United States played no role in the strike in Damascus and did not know of it ahead of time.

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