France has urged strict restraint across the Middle East after Israel’s strike in Beirut killed senior Hezbollah commander Haytham Tabatabai, a development that Paris said risks accelerating an already explosive regional standoff.

Hezbollah and Hamas have substantially boosted their military cooperation in Lebanon in recent months, according to an unsourced, unconfirmed report on the Kan public broadcaster.

The ceasefire is broadly holding in Gaza, with Israeli forces inside the strip having pulled back to the so-called "yellow line." Still, renewed Israeli strikes killed dozens of Palestinians last week in response to what Israel alleged was a ceasefire violation by a Hamas gunman.