New satellite images taken above Syria have revealed the scale of the devastation in the country following four years of civil war . Schools , hospitals and refugee camps are seen destroyed in towns and cities such as Aleppo , Kobane , Homs and ISIS ' de facto capital Raqqa since the country was torn apart in 2011 . Initially a battle between various armed rebel groups and the Syrian regime forces , the Syrian Civil War has since descended into a conflict with hundreds of frontlines , as rebel groups fight among themselves and ISIS and Al Qaeda-backed terrorists seize vast swathes of land . Scroll down for video . Before : This photograph showing the area around Aleppo 's old citadel was taken of November 21 , 2010 - a year before the Syrian Civil War broke out . And after : On October 22 , 2014 - less than four years after the above image was captured - the area around Aleppo 's citadel is seen largely destroyed . Monument : This photograph taken on October 12 , 2011 shows the elaborate shrine to ancient Islamic icons Uwais al-Qurani and Ammar Ibn Yasser in the northern Syrian city of Raqqa . Destroyed : The monument - which lies in ISIS-held territory - was sadly destroyed by militants in 2013 who said it distracted from the veneration of Allah . This photograph was taken on October 6 , 2014 . The satellite images form part a UN report due for release tomorrow that will present analysis of the impact of four years of war on the Middle Eastern nation . UN investigators used their satellite program UNOSAT to gather the startling photographs which , according to an advance statement detailing the report , document 'indiscriminate attacks on civilian population , including barrel bombing , destruction of schools , hospitals , residential areas , markets , power plants and the vast cultural heritage of Syria . ' Comparing images taken shortly before the start of the war in 2011 with those captured in recent months , the UN has been able to show the geographical changes caused by relentless fighting between various groups , as well as the displacement of an estimated 6.5 million people . The images emerged as the Syrian air force has carried out a chlorine gas attack on a northern town , killing six people , according to activists , as Amnesty International said separate government air strikes on the Islamic State 'capital ' could amount to war crimes . The Britain-based Syrian Observatory for Human Rights and the Local Co-ordination Committees said gas attacks on the town of Samrin injured dozens more people . Historic : This photograph dated September 4 , 2011 shows the ancient Syrian border city of Dura-Europos , which was considered a UNESCO world heritage site . Target : Holes in the ground around Dura-Europos reveal the extent of looting in the area by April 2 , 2014 . An opposition official in the area of this morning 's chlorine gas release said there were two attacks - the first targeting rebels while the second hit a residential area . He said the six killed were members of the same family , including three children . A military official denied the claims and blamed rebels fighting to topple President Bashar Assad . Earlier , Amnesty International said air strikes on the ISIS stronghold of Raqqa on November 25 killed dozens of civilians . The human rights group said it had documented a series of Syrian government air strikes between November 11 and November 29 that killed up to 115 civilians - including 14 children - in the city . Raqqa has been ISIS ' seat since it declared a caliphate in areas under its control in Iraq and Syria . Amnesty International said the 'unlawful ' killings violated international humanitarian law and some of the attacks could amount to war crimes . The London-based group said the air strikes included attacks on a mosque and a busy market 'crammed full of civilians ' as well as some buildings not being used for military purposes . Clear : The satellite images form part a UN report due for release tomorrow that will present analysis of the impact of four years of war on the Middle Eastern nation . Ravaged : Schools , hospitals and refugee camps are seen destroyed in towns and cities such as Aleppo , Kobane , Homs and ISIS ' de facto capital Raqqa since the country was torn apart in 2011 . Philip Luther , director of Amnesty 's Middle East and North Africa programme , said : 'Syrian government forces have shown flagrant disregard for the rules of war in these ruthless air strikes . Some of these attacks give every indication of being war crimes . 'They have carried out repeated attacks on civilian areas without clearly identifying military targets , a blatant violation of the requirement to distinguish between civilians and military targets . ' Syrian authorities said at the time that the attacks were meant to target IS members and bases , but Amnesty said the evidence it gathered shows that , in most cases , no military targets could be identified . On November 25 , Syrian government forces bombed a number of civilian areas , striking a mosque , a busy market , shops , a transport hub , a storage facility and a residential building , Amnesty said . Mr Luther said : 'The residents of Raqqa already have to endure the reality of life under brutal IS rule . Punishing an entire civilian population simply because the city where they live is now under IS control can never be justified . '
Photos taken for new Aleppo , Kobane , Homs and report show destruction of Syria 's geography . Satellite images show the ruins of schools , hospitals and refugee camps . Cities such as UN Raqqa appear largely destroyed . The Aleppo , Kobane , Homs and will release its full report on the brutal Syrian conflict tomorrow .