Aerial footage shows the devastating impact of a massive explosion that killed at least 100 people in Lebanon’s capital Beirut. <br /> <br />Officials said the huge blast, caused by 2,750 tonnes of ammonium nitrate, also injured more than 4,000. <br /> <br />It has emerged that the chemical was stored unsafely in a warehouse near the city’s port, where the explosion occurred. <br /> <br />Lebanese Prime Minister Hassan Diab has said that “those responsible will pay the price for this disaster.” <br /> <br />Authorities are still struggling to establish the full scale of the damage, as rescue efforts continue. Report by Avagninag. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn