Lebanon's transport and public works ministry asked an Iranian plane not to enter Lebanese airspace after Israel warned on Friday air traffic control at the Beirut airport that it would use "force" if the plane landed, a source at the Lebanese transport ministry told Reuters, APA reports.
The source said it was not clear what was on the plane, adding: "The priority is people".
Late on Friday, Israeli military spokesperson Rear Admiral Daniel Hagari said Israeli air force planes were "patrolling the area of the Beirut airport" and would not allow "hostile flights with weapons to land" there.
"We know about Iranian arms transfers to Hezbollah and are thwarting them," he said.
Hezbollah has fired hundreds of rockets and missiles at targets in Israel, including Tel Aviv. The group said it had fired more on Saturday and Israel's military said sirens had sounded in northern Israel. Israel's air defence systems have ensured the damage has so far been minimal.
The Israeli military said the country is on high alert for a broader conflict.