Hammond said Iranian negotiators would have to show "considerable further flexibility" over the next four days to get a deal.

The explosion hit outside the gate of the Green Village in Kabul, the scene of previous attacks targeting the foreigners living there.

Hungarian court found Safarov guilty of premeditated murder and sentenced him to life in prison, with possibility of parole after 30 years.

“We tried to monitor the line of contact near the crash site, but Baku did not offer security guarantees to the OSCE Mission,” Kasprzyk said.

"This payment will be followed by other payments," Hoshiyar Zebari, who is a Kurd, told a news conference in Baghdad.

The country currently has 1,520 soldiers in Afghanistan as part of the security mission that will end next month.

Earlier this week, Hauchard was named by a French prosecutor as one of those leading Syrian prisoners to their execution.