Thornberg attributed the rise primarily to the propaganda machine of the ISIS, which has united different groups of Islamist extremists.
Police have warned some of the victims may never be identified because of the state of the remains.
The talks are taking place three months after Prime Minister Theresa May formally triggered the two-year Brexit timetable.
The incident occurred less than three months since a man drove a car into pedestrians on Westminster Bridge
The Iraqi-born world’s most-wanted man has been rumoured wounded or killed a number of times in the past.
France, Germany, Ghana, Ireland and Japan were among nations seeking re-election.
The criminal probe was launched after it emerged that cladding, used on Grenfell Tower is banned in the US.
At least 17 people were killed in the disaster, although that figure is expected to rise, but only 6 have been identified.
Reports released last year said that Clinton destroyed her used phones on at least 2 occasions while serving as Secretary of State.
The Times said the work by Israeli cyber operators was a rare success of Western intelligence against the constantly evolving.
Wahabi, 39, who lives on the ninth floor of the 27-storey Grenfell Tower, said she was awoken by smoke at around 1:00am on Wednesday.
Edward Daffarn said he was on 16th floor and heard a neighbour’s smoke alarm go off and another neighbour called and told him to get out.
Zarif described Iran-Kenya relations as good and assured Kenya of Tehran's readiness for providing humanitarian aid to the country.
Both countries agreed that social networks were not doing enough to stamp out terror propaganda.
The talks are being closely watched in European capitals as they could delay the expected start of Brexit negotiations next week.
Jack Letts from Oxford, says he has left the ISIS territory and is now being held by Kurdish forces fighting the group.
But he stressed too that he respected the sovereign decision of the British people to leave the EU in their referendum a year ago.
Emergency services said 50 people injured in the incident were taken to five London hospitals.
A plume of black smoke stretched for miles (kilometers) across the pale sky after dawn, flame-licked wreckage of the building.