British Prime Minister Keir Starmer on Thursday said he will hold emergency talks with France and Germany on Gaza, as he condemned the "suffering and starvation" unfolding there as "unspeakable and indefensible."

Starmer said the situation in the Palestinian enclave has been "grave” for some time but has "reached new depths." It comes as aid groups warn of starvation in the Gaza Strip and the U.S. said it was cutting short cease-fire talks.

Starmer is also under increasing pressure to fulfil Labour's promise to recognize Palestine as a state.

"The suffering and starvation unfolding in Gaza is unspeakable and indefensible," Starmer said. "While the situation has been grave for some time, it has reached new depths and continues to worsen. We are witnessing a humanitarian catastrophe," he noted.

"I will hold an emergency call with E3 partners tomorrow, where we will discuss what we can do urgently to stop the killing and get people the food they desperately need, while pulling together all the steps necessary to build a lasting peace," he added.