Benjamin Netanyahu has vowed Israel will "stand alone" if it has to in its war against Hamas, after the US threatened to stop sending some weapons to its ally.

President Joe Biden earlier said America would halt offensive arms supplies to Israel if it attacks the Gaza city of Rafah, where hundreds of thousands of civilians are sheltering from bombardments elsewhere in the Palestinian territory. The Israeli prime minister said in a video statement: "If we have to stand alone, we will stand alone.

"If we need to, we will fight with our fingernails. But we have much more than fingernails." Follow latest:Updates on Israel-Hamas war Amid humanitarian groups' fears of a full-scale invasion of Rafah, an unnamed Israeli official said Israel will press ahead with its operation there and elsewhere in the Gaza Strip, Reuters reported.

Also, chief armed forces spokesperson Rear Admiral Daniel Hagari said his military has the munitions it requires for the operations. He said: "The army has armaments for the missions it plans, and for the missions in Rafah too - we have what we need." Israel claims Rafah is Hamas's last stronghold in Gaza and has vowed to "eliminate" four battalions of fighters which it says are hiding there.

But Mr Netanyahu has not yet ordered his troops to enter the southern city. On Thursday, Israeli tanks and warplanes bombarded areas of Rafah, according to Reuters, citing Palestinian witnesses.

Also, Hamas and another Palestinian militant group Islamic Jihad said their fighters fired anti-tank rockets and mortars at Israeli tanks gathered on the eastern outskirts of the city. The US State Department said it believes a major offensive in Rafah would weaken Israel's position in hostage talks.

Washington is discussing with the Israelis amendments to a ceasefire proposal submitted by Hamas, state department spokesperson Matthew Miller said, adding they were working to finalise the text of an agreement. Mr Netanyahu has previously rejected the Hamas proposal.

Aid fears Most of the Gaza Strip's 2.3 million people are suffering from hunger and northern Gaza is experiencing "full-blown famine.