Prime Minister Benjamin Netanyahu said Sunday that Israel will prevent weapons from being manufacted in Lebanon and will bar arms from being transported from Syria to Lebanon, The Times of Israel reported.

Netanyahu’s stark threat against Lebanon came after Israeli officials have warned repeatedly that Iran may be trying to manufacture advanced missiles in Lebanon to be used against Israel by the Hezbollah terror group.

“We are working to prevent Iran from obtaining nuclear weapons. At the same time we are working against the establishment of an Iranian military presence against us; to this end we are also operating against the transfer of deadly weapons from Syria to Lebanon or their manufacture in Lebanon. All of these weapons are for use against the State of Israel and it is our right – based on the right of self-defense – to prevent their manufacture or transfer.

Netanyahu did not specify what action was being taken against the arms in Lebanon.

Israel has reportedly carried out dozens of airstrikes against targets in Syria, including Iranian military installations, but has mostly refrained from carrying out attacks in Lebanon, where Hezbollah is a major player in the country’s government.