Explosions in Syria Credited to Israeli Air Strike, Sources Say

Israeli fighter jets credited with destroying powerful Russian-made missiles.

An Israeli F-15 I fighter jet takes off during an air show at the graduation ceremony of Israeli air force pilots at the Hatzerim base in the Negev desert, on June 27, 2013.

A series of explosions in the Syrian port city of Latakia reported by regional media were caused by strikes from Israeli fighter jets, according to U.S. government sources.

[READ: Syria Becoming Breeding Ground for Attacks on U.S., Europe]

CNN first reported an Obama administration official who credited the explosion to an Israeli warplane strike. Israel was targeting missiles and other equipment it felt was bound for Hezbollah, the Lebanese militant political group.

In an email, a Defense Department spokesman said Thursday night the Pentagon would not comment on reports of strikes in Syria.

The Israeli Defense Forces declined to comment to CNN on the strikes. The active Twitter account for the Israeli military had no mention of them. It did, however, document that five Israeli soldiers were injured during a mission early Friday morning to detonate an underground tunnel leading from the Gaza Strip, which the Israelis believed could be used for terrorist purposes.

Four Gaza militants were killed in the clash with Israeli troops, reports the Lebanese Daily Star newspaper.

[ALSO: The Shadow War in Syria]

The timing of the explosions in Latakia remains unclear.

A Lebanese military source told the Daily Star that six Israeli jets flew over Lebanese territory on Wednesday. Flights over Lebanese airspace are frequent, the Daily Star reports, and sorties of this magnitude are usually associated with strikes against Syria.

Reuters cites a Syrian opposition source who defected from Syrian Air Force intelligence who said the target was a strategic missile battery where Syrian forces kept long-range Russian missiles, which are among their most powerful weapons.

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