The US-led coalition fighting Isis has announced that it is investigating the incident.
Former Iraqi finance minister Hoshyar Zebari said the group once made $3m to $5m – but that is no longer.
Militants returning to Britain from conflict zones pose increased terror threat, claims expert.
The coalition announced an investigation into the incident as thousands of civilians flee the embattled city.
The UN said it was 'profoundly concerned' by the high loss of life.
People do not start out violent, but inequality, injustice and violence leaves them ripe for extremist groups.
FBI ready to protect Watson after president says ruling against his executive order is 'judicial overreach'.
24 already-scheduled trips will go ahead as planned.
US Secretary of State opened meeting of the ministers of the global coalition on the defeat of Isis.
Islamic State has lost much territory and many fighters as it comes under attack from the US-backed coalition in Iraq and three separate ground forces in Syria.
111,000 have sought shelter in 17 nearby camps with rest staying with relatives living nearby.
Families trudge through rain and mud as they flee, many desperately hungry and traumatised by living under Isis rule.
Heavy fighting has been reported in Mosul's old city as Iraqi forces battle towards the Grand Mosque.
Major General Maan Saad of Iraq's elite anti-terror army said over 700 Isis militants have been killed in west Mosul.
Escape is incredibly dangerous: Isis has threatened to kill anyone caught trying to get out, and residents have to cross dangerous front lines to reach safety.
Inside Mosul's antiquities museum, which once housed priceless Mesopotamian artefacts dating back thousands of years.
Clooney asks Iraqi PM Haider al-Abadi to write to the UN Security Council seeking an inquiry.
Iraqi forces are facing increasingly stiff resistance from Islamic State militants, who are using suicide car bombs and snipers to defend their last major stronghold in Iraq.
Two-year-old Alfie Lunn went into meltdown as Her Majesty and Prince Philip approached to say "hello".
A strategically positioned, well hidden, sniper can pin down the advancing Iraqi forces for days.
Congress investigating why law enforcement didn't pick up man just weeks before 2016 election.
Baghdad will need money and support from the US and others if it is to defeat jihadism.