Top Lebanese officials have urged Washington and Paris to press Israel to uphold a ceasefire, after dozens of military operations on Lebanese soil that Beirut has deemed violations, two senior Lebanese political sources told Reuters on Tuesday.

In its strongest threat since last week's deal to end 14 months of conflict, Israel said it would hold Lebanon responsible for failing to disarm militants who violate the ceasefire.

Deadly Israeli strikes on south Lebanon and Hezbollah rocket launches on an Israeli military post on Monday have put a U.S.-brokered ceasefire between the two in an increasingly fragile position