Israeli warplanes hit a convoy of advanced missiles heading out of Syria and into Lebanon where they were to be delivered to Hezbollah, a Kuwaiti newspaper reported on Wednesday.

According to the report, in the Kuwait-based paper Al-Jarida (Arabic), the attack was carried out earlier this week in the vicinity of the Lebanese-Syrian border.

However, the report, which relied on an unnamed “official source” in Jerusalem, did not say whether the targets were in Lebanon or Syria at the time of the strike.

The Times of Israel could not independently confirm the report. Prime Minister Benjamin Netanyahu refused to answer questions from an Israel Radio reporter Tuesday morning regarding alleged Israeli strikes in Syria.

On Tuesday Lebanese media reported that Israeli warplanes and pilot-less drones overflew villages in south Lebanon.

Israel has warned that any delivery of advanced weapons to the Shi’ite militia was a “red line” that would precipitate military action.

Israel has reportedly struck several times at weapons stashes and convoys inside Syria since the beginning of the year, either from the air or the sea.

Most recently, on July 5 an airstrike reportedly targeted Russian anti-ship Yakhont missiles, which Israel considered game-changers if they were to be transferred to Hezbollah in Lebanon.