Live updates: Follow the latest news on Israel-Gaza
Norwegian Foreign Minister Anniken Huitfeldt condemned Israel's siege of Gaza in retaliation to the Hamas group attacks as Europe reacted to an overnight order for a million Palestinians to evacuate their homes.
"Israel is entitled to defend itself ... but it cannot use all possible means," Ms Huitfeldt said on Friday. "I condemn this siege because you have to, when they ask so many people to leave, when they don't have access to food and medicine."
Ireland's Deputy Prime Minister called on Israel to rescind the order for Gaza residents to leave their homes in the northern areas enmasse, saying "two wrongs don't make a right".
"It simply isn't feasible that a million people can move out of the city in 24 hours," Micheal Martin, who is also Foreign Minister in the coalition government.
"That call by Israel should be rescinded and should be pulled back because I think everybody knows it's not something that can be achieved at all and I think it puts enormous trauma on the ordinary civilians and Gazans.
"Two wrongs don't make a right and there's an obligation to protect civilians in Gaza, to protect children and families and so forth and people who have nothing to do with Hamas."
Britain's Foreign and Commonwealth Office updated the country's travel advice for its citizens on Friday as it urged anyone affected to obey the Israeli military orders.
"We advise following this advice issued by the Israeli authorities," it said. "We recognise this is a fast-moving situation that poses significant risks."
Rishi Sunak, the British prime minister, leads a government that has taken a line that puts less pressure on Israel. Speaking at a summit of northern European leaders, he said the plight of civilians must always be paramount. “It is something I’ve discussed with Prime Minister Netanyahu myself and underlined with what the secretary of state from the United States and the president have said, that of course Israel should take every possible precaution to protect civilians as they exercise their rightful ability to defend themselves against attacks like this.”
Grant Shapps, UK defence secretary, said the British government supported Israel’s "advance notice" for more than one million people to leave Gaza.
Speaking to Radio 4’s Today programme on Friday, Mr Shapps said the operation must stay within the bounds of international law in its operation to root out Hamas militants.
“It is the case that we want to enable Hamas to be removed from the scene but to do so in a manner that does not affect the Palestinian population, as far as is possible.
“And the difficulty is that Hamas hide themselves within that population deliberately, with a deliberate policy of using the population as human shields.
“So, Israel is letting people know in advance, and we very much support advance notice being given.”
Israel-Gaza war latest - in pictures
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At UN headquarters in New York City, Rachel Zeitchik, right, and Jay Zeitchik attend an event for families of Israelis kidnapped by Hamas. AFP -
Palestinians flee from northern Gaza towards the south after the Israeli army demanded the population of more than a million people leave before a ground invasion. AP -
Demonstrators at a rally in support of Palestine face a counter-demonstration in support of Israel near Times Square in New York. EPA -
Palestinians flee from northern Gaza to the south after the Israeli army issued an evacuation warning. AP -
An injured man is rescued from the rubble of a building following an Israeli airstrike in Rafah, Gaza Strip. AP -
Mourners take cover as sirens sound during the funeral of Tom Godo, killed during the attack by Hamas militants on the Kibbutz Kisuffim last week, in Kibbutz Naan near Tel Aviv. AFP -
A Palestinian man flashes the victory sign as he and others leave northern Gaza before an expected Israeli ground offensive. AFP -
Palestinians head south with their belongings after being ordered by Israel to leave northern Gaza on Friday. AFP -
Israel ordered more than a million Palestinians to head south within 24 hours. Reuters -
The UN criticised the directive, saying forcing such a large number of people to flee en masse would be catastrophic. Reuters -
Gazans have to travel about 15km if they live in the northernmost part of the strip to reach the area south of the Wadi Gaza. Reuters -
The UN said that more than 423,000 people have already fled their homes in the territory, with a sizeable number making the more than 10km journey on foot. Reuters -
Palestinians with their belongings flee to safer areas in Gaza City. AFP -
An Armoured Personnel Carrier drives near Israel's border with the Gaza Strip. Reuters -
Supporters of Iraqi Shi'ite cleric Moqtada al-Sadr gather for mass Friday prayer during a protest in solidarity with Palestinians in Gaza, in Baghdad, Iraq. Reuters -
A Palestinian woman waits to cross into Jerusalem's Old City through Damascus Gate next to Israeli soldiers. AFP -
Israeli army infantry fighting vehicles deploy along the border with the Gaza Strip in southern Israel. AFP -
Israeli soldiers detain a man while on patrol near Kibbutz Beeri, near the Gaza Strip. AFP -
Students hold in a rally in support of Palestine at Columbia University in New York. Getty Images -
Family and friends mourn Valentin Ghnassia, 23, who was killed in a battle with Palestinian militants at Kibbutz Beeri near the Israeli border with the Gaza Strip. Getty Images -
A ball of fire erupts in Gaza city after an Israeli air strike. AFP -
Palestinians inspect the rubble of buildings hit by an Israeli air strike at Al Shati refugee camp. AP -
A fireball erupts from an Israeli air strike in Gaza city. AFP -
People waiting for news of victims outside the morgue at Al-Shifa hospital in Gaza City. AFP -
A girl mourns the death of members of the Samour family, who were killed in Israeli strikes on their house in Khan Younis in the southern Gaza Strip. Reuters -
Israelis arrive to sign up at a weapons distribution point for people allowed to carry arms, at the Ayyelet HaShahar Kibbutz in northern Israel, near the Lebanese border. AFP -
Mourners outside the morgue at Al-Shifa hospital in Gaza City as battles between Israel and the Hamas movement continue for a sixth consecutive day. AFP -
Men dig graves to bury members of the Samour family, who were killed in Israeli strikes on their house in Khan Younis. Reuters -
Palestinian children who fled their homes during Israeli strikes, play at a United Nations-run school in Gaza City. Reuters -
Israeli soldiers near a self-propelled howitzer near the border with Gaza in southern Israel. AFP -
Israel's Foreign Minister Eli Cohen, left, welcomes US Secretary of State Antony Blinken upon arrival at Israel's Ben Gurion Airport. AFP -
Palestinian children in a makeshift shelter at Al-Shifa hospital in Gaza City. Reuters -
Boxes of humanitarian aid and supplies from Jordan Hashemite Charity Organisation destined for Gaza, in Amman, Jordan. Reuters -
Palestinians outside Al-Shifa hospital in Gaza City on the sixth day of fighting between Israel and Hamas. AFP -
A pro-Israel vigil in Montevideo, Uruguay. EPA
Mr Shapps said "it seems very likely" that there are British hostages in Gaza.
"We don't have exact data on that, for obvious reasons. But within Gaza there will also be Brits or possibly people with dual nationalities as well. The Prime Minister has spoken to the Egyptian President about using that border to get people out," he said.
"I can't go into specific detail. What I can tell you is it is highly likely, no one will know for sure, that there are those – either British nationals or people with joint nationality – involved in the hostage situation, as has been reported previously.
"And secondly, that we're sending assistance and expertise, including intelligence, to the region, and to a number of different locations.
"But this is not the same as saying we're sending people into Gaza itself."
