An international United Nations staffer was killed and five others were wounded in a strike Wednesday on a U.N. guesthouse in the Gaza Strip, as Israel pressed on with a new offensive in the territory that shattered a fragile ceasefire with Hamas.

On March 2 Israel blocked the entry of humanitarian aid into Gaza, using starvation and dehydration as military strategy. On March 15 a Unicef report claimed that 31% of children under two years of age in the north of the Strip were acutely malnourished. There has also been a “dramatic increase in child deaths due to acute malnutrition”.