Five countries have demanded compensation from Iran after an airliner was shot down near Tehran, killing their citizens on board. “The world is waiting for answers and we will not rest until we get them,” they said.

Five countries whose citizens died when Iran shot down an airliner last week issued a joint statement on Thursday, calling for Tehran to pay compensation to the families of the victims, as reported by Deutsche Welle.

Canada, Ukraine, Sweden, Afghanistan and UK said Iran must hold a “thorough, independent and transparent international investigation open to grieving nations.”

The foreign ministers of the five countries met on Thursday at the Canadian High Commission in London. “We are here to pursue closure, accountability, transparency and justice” for the victims, Canadian Foreign Minister Francois-Philippe Champagne said in London. “Families want answers, the international community wants answers, the world is waiting for answers and we will not rest until we get them,” he added.

All 176 people aboard the Ukraine International Airlines flight died when the aircraft was brought down by ballistic missiles shortly after taking off from Tehran’s Imam Khomeini International Airport on January 8.

The victims included 57 Canadian citizens as well as 11 Ukrainians, 17 people from Sweden, four Afghans and four Britons, as well as Iranians.