Israel Gaza: UN says Israeli air strike killed six of its staff  BBC.comHamas considers US hostage deal, Gaza strike allegedly kills 6 UNRWA staff  The Jerusalem PostU.N. agency says six of its staff among those killed in Israeli strikes  The Washington PostMiddle East Crisis Israeli Airstrikes Hit School Complex Housing Displaced in Gaza, Killing 18  The New York TimesIsraeli strikes in Gaza’s al-Mawasi humanitarian zone kill dozens of Palestinians sheltering in tent camp  CBS News