The European Union is leaving the door open to sanctioning Israel to maintain leverage to ensure the Gaza ceasefire deal is fully implemented, the bloc's foreign policy chief said Monday.

The management of the Louvre museum denied on Monday having contacted a private Israeli intel firm to investigate the weekend's audacious jewel heist at the iconic French institution.

Hamas's armed wing said it would return on Monday the body of a hostage recovered the day before as part of a ceasefire deal with Israel.

Special envoy Steve Witkoff and the U.S. president's son-in-law Jared Kushner were in Israel Monday to shore up the tenuous ceasefire that's holding in Gaza, a day after the fragile deal faced its first major flareup with Israel threatening to halt aid transfers after it said Hamas militants had killed two soldiers.

The U.S. Embassy said the two envoys had landed in Tel Aviv. The Israeli military later said it resumed enforcing the ceasefire, and the official confirmed that aid deliveries would resume Monday.

As a tenuous ceasefire took hold in Gaza this month, Israel launched more airstrikes on southern Lebanon — 11 months into a ceasefire there.

The bombardment of a construction equipment business killed a Syrian passerby, wounded seven people including two women, and destroyed millions of dollars worth of bulldozers and excavators.

The Israeli government said on Sunday that Hamas has handed over more hostage remains, as delays in finding bodies buried under the rubble of Gaza threatened the fragile ceasefire.

Israeli Prime Minister Benjamin Netanyahu on Sunday left a cabinet meeting to hold security consultations about a security incident in Gaza's Rafah.

Israeli media is reporting clashes between Hamas fighters and the Israeli military in Rafah. There are also reports about a detonation of an IED that caused damage and injured soldiers in Rafah.

Gaza's civil defense agency said that Israeli forces killed nine people in an attack on a bus Friday, while the military stated it had fired at a vehicle that crossed the so-called "yellow line".

A team of Turkish disaster response specialists is stationed at the Egyptian border, awaiting Israeli authorization to enter Gaza and help in search and recovery operations, a Turkish official told AFP on Friday.

Israeli forces shot dead an 11-year-old boy in the occupied West Bank, his family and health officials said Friday, while the army said its troops opened fire at rock throwers.