By Nidal al-Mughrabi and Ahmed Shalaby

CAIRO, April 2 (Reuters) - Palestinian militant group Hamas has told mediators it will not discuss giving up arms without guarantees that Israel will fully quit Gaza as laid out in a disarmament plan from U.S. President Donald Trump's "Board of Peace", three sources told Reuters.

Hamas' disarmament is a sticking point in talks to implement Trump's plan for the Palestinian enclave and cement an October ceasefire that halted two years of full-blown war.

BEIJING, April 2 (Reuters) - China on Thursday repeated calls for a ceasefire in the Middle East and safe passage through the Strait of Hormuz in conversations with Western counterparts, widening its diplomatic effort to end the war that has disrupted the global energy market.

China's Foreign Minister Wang Yi discussed the Middle East situation in separate phone calls with the European Union's top diplomat Kaja Kallas and Germany's Foreign Minister Johann Wadephul, appealing for joint efforts to push for a prompt end to the war.

By Emma Farge

GENEVA, April 2 (Reuters) - Emergency medical needs in Iran are rising exponentially, and stocks of trauma kits and other gear could run low if the war persists, the head of the International Federation of Red Cross and ​Red Crescent ​Societies delegation there said on Thursday.

More than 1,900 people have been killed since the U.S.-Israeli airstrikes on Iran began on February 28, and more than 21,000 injured, according to the agency - the only humanitarian group working across the country. Other estimates are higher.

WARSAW, April 2 (Reuters) - Polish prosecutors have opened an investigation into a bomb attack that wounded a Polish soldier who was part of a U.N. peacekeeping patrol in Lebanon, the District Prosecutor's Office in Warsaw said on Thursday.

The March 29 bombing was carried out in Bint Jubayl by an unidentified person using an improvised explosive device on the route of the Polish convoy, prosecutors said in a statement. The statement said the bomb attack failed due to the HMMWV, or Humvee, vehicle's security measures.

MOSCOW, April 2 (Reuters) - Russia will ask the United States and Israel to ensure a ceasefire while it evacuates more Russian staff from the Bushehr nuclear power plant in Iran, RIA news agency reported on Thursday.

"The travel routes will be communicated to the relevant authorities in Israel and the United States, and we will use all channels to request strict adherence to the ceasefire during the convoy’s movement," the head of Russia's state nuclear corporation Rosatom, Alexei Likhachev, was quoted by RIA as saying.

By Raghed Waked and Mahmoud Hassano

BEIRUT, April 2 (Reuters) - Lebanese Prime Minister Nawaf Salam said on Thursday there was no end in sight to a war that had already displaced a million people over the last month, as families fleeing Israeli strikes said they were exhausted by repeated rounds of conflict.

Lebanon is entering the second month of conflict between Iran-backed armed group Hezbollah and Israel, which has pledged to occupy swathes of southernLebanon as part of a "security zone" to protect its own northern residents.

Rows of luxury boutiques line an upmarket Dubai mall, yet a month into the Middle East war their sales staff sit idly, phones in hand, watching for the rare customer.

Salespeople in immaculate suits say they have been told not to speak to reporters, but one briefly described the mood.

"Of course, there are fewer customers, especially tourists," the salesperson told AFP. "Locals still come.

"Luckily, we have a strong local clientele and no one is panicking."

A UK-led meeting of some 40 countries on the strait of Hormuz crisis wrapped up Thursday with a demand for the "immediate and unconditional" reopening of the vital shipping route, but no immediate breakthrough.

"Iran is trying to hold the global economy hostage in the Strait of Hormuz. They must not prevail," British foreign minister Yvette Cooper said in a statement.

"To that effect, partners today called for the immediate and unconditional reopening of the Strait and respect for the fundamental principles of freedom of navigation and the law of the sea," she added.

A month into Israel's war against Hezbollah, invading Israeli troops are gradually advancing in south Lebanon, raising fears for the area's fate following the last Israeli occupation that lasted nearly two decades.

Since war erupted last month, Israeli officials have said Israel intends to establish a "security zone" inside Lebanon.

By Joshua McElwee

VATICAN CITY, April 2 (Reuters) - Pope Leo last May became the first U.S. leader of the global Catholic Church, but for the initial 10 months of his tenure he mostly avoided comment about his home country and never once mentioned President Donald Trump publicly.

That era has come to an end.

In recent weeks the pope has emerged as a sharp critic of the Iran war. He named Trump, for the first time publicly, on Tuesday in a direct appeal urging the president to end the expanding conflict.