Israel has launched a ‘limited ground operation’ to retake the Netzarim corridor in Gaza, escalating the conflict after the ceasefire agreement with Hamas collapsed. The corridor, previously used by Israeli forces, had been vacated as part of the truce. Meanwhile, a Bulgarian UN worker has been killed, and five others, including a British man, were wounded in a strike on a UN guesthouse in Gaza. Israel denies responsibility, saying that an initial investigation found ‘no connection’ between the strike and the Israel Defence Forces (IDF). The UN has condemned the attack on its personnel. The Gaza health ministry says that at least 436 people have been killed since Israel launched the fresh wave of airstrikes, though Israel disputes the accuracy of those figures, maintaining that it targets militants, not civilians.