The wife and child of top Hamas commander Mohammed Deif were reported killed by an Israeli missile.
The resumption of hostilities threatens to derail Cairo negotiations aimed at securing a permanent truce.
As talks on a permanent cease-fire continue in Cairo, Israel announces that it uncovered a Hamas coup plot.
Deiplomatic efforts in Cairo to end the conflict face high hurdles as the side are far apart on key issues.
The move, which will allow them to continue indirect talks, came soon after a rocket was fired from Gaza.
Hamas and many Gaza Strip residents hope they will be allowed to build an airport and a seaport.
Gaza Strip residents took advantage of the latest temporary cease-fire to stock up on necessities.
The truce opens the possibility that indirect talks aimed at a more durable truce will continue in Cairo.
Once viewed as crossing a red line, attacks on religious sites, which Israel says militants use, become the norm.
Three days of calm end as Israel and Hamas resume exchanging fire over Gaza; peace talks in Cairo stumble.