A spokesman for IS said Hashimi, an Iraqi, was killed "in combat with enemies of God", without elaborating on the date or circumstances of his death.
US targets 'senior' IS jihadist in Syria's northeast: Centcom
Counter-terrorism officers said the hostages' recollections helped "zero in" on three of the British captors.
The demand for a craft that dates back to ancient Phoenician times has dropped to all but a trickle.
Russian air strike on Syria kills seven: monitor
Iran, Russia, Turkey presidents to talk Syria war in Tehran
Syria's Assad in first official visit to Aleppo since war
US strike kills jihadist leader in Syria
The assassination of Fakhrizadeh is the latest in a series of killings of nuclear scientists in Iran.
Last year, Trump's administration made the controversial to decision to recognise Israeli sovereignty over the Golan.
Israel has carried out hundreds of air and missile strikes on Syria since the civil war broke out in 2011.
UN Secretary General Antonio Guterres's plea for a global ceasefire back in March has gone largely unheeded.
In recent days, the medicine has been in such demand in Syria that a box can sell for over $100 on the black market.
As a permanent member of the UN Security Council, London wields veto power equal to Paris, Washington, Moscow and Beijing.
Four US service members and Iraqi security forces were wounded in Friday's attack at the K1 Iraqi military base in Kirkuk, an oil-rich region north of Baghdad.
The fresh advances in Idlib came as Russian warplanes continued to pummel the province's south.
Entering an election year, Trump is unlikely to slow down as he seeks what has largely eluded him -- a headline-grabbing victory.
ISIS members irrespective of their original nationality might be facing execution by hanging soon.
The special forces dog, Conan, received an award after being injured during a special mission to kill ISIS leader Abu Bakr al Baghdadi.
An SAS team escorted members of the Foreign Office into Syria to rescue three orphan British children born to ISIS parents.
The court also found Clain's husband guilty and handed him a ten-year sentence
British citizen Aiden James has been given a jail sentence for training with the Kurdish YKK before fighting against the ISIS in Syria.