Israel at war, day 281: IDF targets Hamas' Mohammed Deif in Gaza strike; Dozens reportedly killed

IDF, Shin Bet: Hamas military chief Mohammed Deif targeted in Khan Yunis strike; Hamas denies Deif is injured; 70 reportedly killed, 280 wounded ■ Gazan reports: 14 killed by IDF strike on north Gaza mosque ■ Cease-fire talk sources express concern on PM Netanyahu's conduct ■ Argentina designates Hamas as terror group ■ Here's what you need to know 281 days into the war