Tens of thousands of people fled northern Syria as regime troops pressed a major Russian-backed offensive around second city Aleppo.
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A Syrian child cries as Syrians fleeing Aleppo wait in Bab-Al Salam, next to the city of Azaz near Turkish crossing gate in northern Syria on Feb. 5, 2016. Nearly 40,000 Syrian civilians have fled a regime offensive near Aleppo, as Turkey warned it was bracing for a wave of tens of thousands of refugees.
ā BULENT KILIC / AFP - Getty Images
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A man carries his belongings on his head as Syrians fleeing the northern embattled city of Aleppo arrive in Bab-Al Salama along the Syria-Turkey border on Feb. 5, 2016, next to the city of Azaz, northern Syria.
ā BULENT KILIC / AFP - Getty Images
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Syrians wait in a field in the town of Iqda, next to the city of Azaz in northern Syria, on Feb. 5.
ā AFP - Getty Images
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Syrians families wait at the Bab al-Salama crossing on the border between Syria and Turkey, on Feb. 5.
ā AFP - Getty Images
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A man stands near in Bab-Al Salama onĀ Feb. 5.
ā BULENT KILIC / AFP - Getty Images
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Smoke rises over the industrial city in Aleppo, Syria on Feb. 4.
ā Abdalrhman Ismail / Reuters
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A Syrian man comforts a boy amid the rubble of buildings following a reported air strike on the rebel-held neighborhood of al-Kalasa in the northern Syrian city of Aleppo, on Feb. 4.
ā THAER MOHAMMED / AFP - Getty Images
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Syrian rescuers remove a victim from under the rubble following a reported air strike on the rebel-held neighborhood of al-Kalasa in Aleppo on Feb. 4.
ā THAER MOHAMMED / AFP - Getty Images
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A damaged building is seen after airstrikes on opposition controlled residential areas in the al Qallasa neighborhood in Aleppo on Feb. 4.
ā Beha el Halebi / Anadolu Agency via Getty Images
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A cat is seen among debris of a damaged building as the members of the civil defense team search casualties in the al Qallasa neighborhood in Aleppo on Feb. 4.
ā Beha el Halebi / Anadolu Agency via Getty Images
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People inspect the damage after airstrikes by pro-Syrian government forces in the rebel held al-Sakhour neighborhood of Aleppo on Feb. 5.
ā Abdalrhman Ismail / Reuters
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Civil defense team members search for casualties in the al Qallasa neighborhood in Aleppo, Syria on Feb. 4.
ā Beha el Halebi / Anadolu Agency via Getty Images
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A boy inspects damage after airstrikes by pro-Syrian government forces in the rebel held Al-Shaar neighborhood of Aleppo, Syria on Feb. 4.
ā Abdalrhman Ismail / Reuters
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Syrians celebrate as pro-government forces drive through the Shiite town of Zahraa, on Feb. 4, during a regime operation aimed at severing the main rebel supply route into Aleppo city and breaking an opposition siege on Zahraa and another regime-held town.
ā AFP - Getty Images
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Syrians hold a poster of Syrian Presdent Bashar al-Assad, his late father Hafez and Lebanon's Shiite movement Hezbollah Hassan Nasrallah, as they celebrate after pro-government forces broke an opposition siege in the northern Shiite town of Nubol, on Feb. 4. The advance -- which has seen the most significant government victories since staunch ally Russia launched air strikes last year -- brings government forces closer than ever to encircling rebels who have held the east of Aleppo city since mid-2012.
ā GEORGE OURFALIAN / AFP - Getty Images
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Syrians celebrate after pro-government forces broke an opposition siege in the northern Shiite town of Nubol, on Feb. 4, during a regime operation aimed at severing the main rebel supply route into Aleppo.
ā GEORGE OURFALIAN / AFP - Getty Images
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Syrians pro-government forces celebrate after they broke an opposition siege in the northern Shiite town of Zahraa, on Feb. 4, during a regime operation aimed at severing the main rebel supply route into Aleppo.