Eyewitnesses say an Israeli military strike on a UN guesthouse in Deir el-Balah killed a Bulgarian UN aid worker.
Congolese President Felix Tshisekedi and his Rwandan counterpart, Paul Kagame, met in Doha on Tuesday.
Israeli forces have resumed some ground operations in Gaza and reportedly taken the Netzarim Corridor.
Gaza hospitals overwhelmed with casualties as relentless Israeli bombardments leave hundreds dead and many more wounded.