Israeli Prime Minister Benjamin Netanyahu would normally celebrate a hostage release such as that taking place on Monday, though in this case the deal with Hamas is another sign US President Donald Trump is starting to make decisions without him.

Benjamin Netanyahu and Israel are "worried about any deal" President Trump might strike with Iran, one source told NBC News.

Tensions between former allies Donald Trump and Benjamin Netanyahu are now spilling into the open, as Trump's renewed backchannel negotiations with Iran spark deep concern in Tel Aviv. With the U.S. reportedly considering a deal that may allow Iran limited uranium enrichment for civilian use,