Hezbollah head Hasan Nasrallah warned of “a response and punishment” following the assassination of senior Hamas leader Saleh Arouri in a suspected Israeli drone strike in Beirut. U.N. agencies have been unable to deliver desperately needed aid to areas in northern Gaza for at least three days, the U.N. Office for the Coordination of Humanitarian Affairs said, citing intense fighting in the area as well as “access delays and denials.”