Visiting US envoy Amos Hochstein on Tuesday urged for calm to return to Lebanon's southern border with Israel, after weeks of skirmishes following the start of the Israel-Hamas war.

"The United States does not want to see conflict in Gaza escalating and expanding into Lebanon," Hochstein told a press conference in Beirut.

"Restoring calm along the southern border is of utmost importance to the United States and it should be the highest priority for both Lebanon and Israel," he added.

Along with thousands of fellow Thai agricultural workers, Pornchai Somnuan has fled the fields to return home as Israel's war with Hamas rages in the Gaza Strip.

When Hamas gunmen attacked Israel on October 7, farmhands who had travelled thousands of miles (kilometres) to work close to the Gaza border found themselves on the front line.

In all, 34 Thai nationals were killed and 19 wounded, while 24 others were taken as hostages back to Gaza, according to Thai officials.

Hundreds of Palestinian foreign passport holders waited on Tuesday inside the war-stricken and besieged Gaza Strip to escape through the Rafah crossing with Egypt.

While most still queued nervously, the first arrivals were seen on the Egyptian side where paramedics transferred an injured woman on a stretcher into an ambulance to rush her to a hospital.

Tuesday was set to mark the fifth day on which Gaza's sole land crossing not controlled by Israel has opened in the past week, to wounded Palestinians as well as foreigners and Palestinian dual nationals.

The printing press in Beeri, an Israeli community that suffered one of Hamas's worst atrocities on October 7, has started up again in a small step towards recovery.

The kibbutz in the south of Israel, less than five kilometres (three miles) from the Gaza Strip, was home to 1,200 people.

Nearly 90 of them including children were among the 1,400 people Israeli officials say were killed in the surprise raids by Palestinian militants.

Some 30 Beeri residents remain missing and are believed to be held captive in Gaza.

It was just before 8am on October 7 when Orit Meir's cellphone beeped with a terrifying voice message from her son Almog who was at a music festival in southern Israel.

"Mum, rockets are (falling) everywhere. I don't know what is going on," the 21-year-old's message said. "Mum, I love you."

The next time she saw him, it was in video footage Hamas released from inside Gaza, showing her son lying on the ground, terrified.

Quiet sobs during memorial speeches, mourning crowds lighting candles... Israel fell silent briefly on Tuesday, marking one month since the deadly Hamas attacks of October 7 plunged it into war.

At Jerusalem's Hebrew University around 1,000 people observed a minute of silence and recited prayers for the 1,400 killed, mostly civilians, in the worst attack on Israel since its founding in 1948.

"The atrocities left a horrible mark," said university president Asher Cohen. "But there is hope. There will be rebirth."

Israel said Tuesday its forces were operating "in the heart of Gaza City" one month after Hamas's bloody October 7 attacks, as the campaign to crush the Palestinian militants intensifies.

Prime Minister Benjamin Netanyahu also issued a stark warning to Hezbollah in Lebanon which, like Hamas, is backed by Iran.

"If Hezbollah makes the choice of joining the war it will be making the mistake of its life," he said in a televised statement marking a month of the war.

His defence minister, Yoav Gallant, underlined Israel's determination "to destroy Hamas".

US Secretary of State Antony Blinken called Tuesday on the G7 to speak "in a clear voice" about the Israel-Hamas war as he kicked off talks with fellow foreign ministers from the grouping in Japan.

"This is a very important moment... for the G7 to come together in the face of this crisis and speak as we do in one clear voice," Blinken said at the start of the two-day meeting in Tokyo.

One month into the Israel-Hamas war, the achievements of US-led diplomacy have been small or subtle, but both supporters and critics say that is partly by design.

US Secretary of State Antony Blinken, completing his second whirlwind crisis tour, insisted that all leaders he spoke to wanted "American leadership."

"Every country I talk to is looking for us to play a leading role with our diplomacy to try to make progress on all of these different aspects of the crisis," Blinken told reporters Monday in Ankara.

Hundreds of US Jewish activists peacefully occupied New York's Statue of Liberty on Monday to demand a ceasefire by Israel and an end to the "genocidal bombardment" of civilians in Gaza.

Dressed in black T-shirts emblazoned with the slogans "Jews demand ceasefire now" or "Not in our name," the protestors unfurled banners reading "The whole world is watching" and "Palestinians should be free" at the base of New York's iconic landmark.

The huge copper statue sits on Liberty Island at the entrance to New York Harbor.