Rebecca Dykes, who worked at the UK embassy in Beirut, had been strangled, police sources say.
Sweden-based doctor Ahmadreza Djalali is shown confessing to spying - a charge he has always denied.
Rebecca Dykes' body was found on Saturday and she had been strangled, police sources say.
Fresh violence erupts between Palestinians and Israeli troops over the US shift on Jerusalem.
The more than 3,000-year-old burials are among three recent discoveries near the city of Aswan.
There has been an escalation of hostilities since the US recognised Jerusalem as Israel's capital.
A mid-air collision was only narrowly avoided, the US defence department says.
She is accused of taking out fraudulent bank loans and buying bitcoin to funnel cash to IS.
Those sentenced to death were accused of belonging to so-called Islamic State.
A missile fired at Saudi Arabia "might as well have had 'Made in Iran' stickers" on it, the US says.