Israeli Prime Minister Benjamin Netanyahu has ordered immediate "powerful" strikes in Gaza.
In response to the order, Hamas stated it would delay handing over the body of a hostage, putting pressure on the U.S.-brokered ceasefire.
The order from Netanyahu follows heightened tensions, with Israel reporting Hamas firing on its forces in southern Gaza.
Netanyahu called the return of a set of remains a "clear violation" of the ceasefire agreement.
The ceasefire agreement requires Hamas to return all Israeli hostage remains as soon as possible.
Author's summary: Israel and Hamas exchange fire and blame.