Update at 10:20 a.m. ET: Israeli airstrikes continue on targets in the Hamas-controlled Gaza Strip, according to multiple reports. The BBC's Jon Donnison just tweeted, for example, that there's been a "major explosion close to bbc #gaza office."
Watch for more updates.
Our original post "Military Chief Killed By Israeli Airstrike, Reports Say":
Ahmed Jabari, the commander of Hamas' military wing who has long been on Israel's "most-wanted" list, was killed today by an Israeli airstrike, according to what Hamas and Israeli officials are telling The Associated Press, Haaretz, The Jerusalem Post and other news outlets.
As the AP notes, "Israeli officials had said in recent days that they were considering assassinating top Hamas officials following a wave of heavy rocket fire from the Hamas-ruled Gaza Strip."
The BBC says "he is the most senior Hamas official to be killed since an Israeli offensive in Gaza four years ago. Witnesses say Jabari was traveling in his vehicle in Gaza City when his car exploded. There are reports his deputy has also been killed."
Reuters adds that "Israel's Shin Bet domestic intelligence service confirmed it had carried out the attack, saying it had killed Jaabri because of his 'decade-long terrorist activity.' "