There have been ongoing discussions between the UK, US, Israel and Egypt to open the Rafah crossing to Palestinian, British and US nationals.
The prison also holds fighters from Kurdish-led forces.
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.
The host nation is on high alert after it was revealed that members of the terrorist organisation are planning attacks targeting the event.
A British man accused of being part of an Islamic State (IS) kidnap-and-murder cell known as the "Beatles" appeared in court in London.
In recent years, the Islamic State's Afghanistan-Pakistan chapter has been responsible for some of the deadliest attacks in those countries.
The battle took place near Niaki, 180 kilometres (110 miles) east of central town Mopti, the armed forces said in a statement.
The Islamic State group on Thursday claimed responsibility for the bombing, saying it was to protest the cartoons printed by the satirical French magazine Charlie Hebdo.
Twenty-three wounded people were in hospital Tuesday, with seven in a critical condition, Vienna's hospital association said.
Captagon, a brand name, was originally for medical use but illegal versions have been dubbed "the Jihad Drug"
The death toll had risen from 59 after 10 more bodies were discovered in the countryside.
A Yazidi girl was held as a slave and allowed to die of thirst in the Iraqi city of Fallujah in 2015.
The attacker, a failed Tunisian asylum seeker, had pledged allegiance to the Islamic State group.
For the Kurds of the Syrian Democratic Forces, the destruction of the Islamic State means they will now have to fight Turkey to survive.
Islamic militants slaughter one another. Dozens killed in Eid al-Fitr attacks as Afghan holiday truce falters.
A two-day event was convened by French President Emmanuel Macron to coordinate efforts to reduce the terror threat in the long-term.
A former teacher of the Lantern of Knowledge School in Leyton has been found guilty of trying to recruit children as young as 11 into Isis-style terrorism.
Far-right leader Marine Le Pen has been charged by a French judge for tweeting gruesome images of purported atrocities by Islamic State (IS).
Lebanon's Hezbollah produced a video game simulating the battlefields of Syria and allowing users to launch attacks on the Islamic State.
Sally Jones, a former punk rocker, from Kent, who married fellow jihadist Junaid Hussain, was thought to have died in a drone strike in Syria, along with her son JoJo, 12.
The Islamic State claims responsibility for the killing of a police officer in Srinagar.
Men leaving Europe to join Isis used to be the primary concern, lately that concern has turned to women returning from war zones.