Olga Duzhikova looks through the window of her flat damaged by shelling in Avdiivka, Ukraine, Saturday, February 4, 2017. Fighting in eastern Ukraine sharply escalated this week. Ukraine's military said several soldiers were killed over the past day in shelling in eastern Ukraine, where fighting has escalated over the past week. (Photo by Evgeniy Maloletka/AP Photo)





Millitary stretchers stand on the wall where Ukrainian servicemen based in Avdiivka, Ukraine, Saturday, February 4, 2017. (Photo by Evgeniy Maloletka/AP Photo)





An Orthodox priest blesses a girl as he distributes humanitarian aid for local residents in Avdiivka, Ukraine, Saturday, February 4, 2017. (Photo by Evgeniy Maloletka/AP Photo)





The Shevchenkos children play in a hostel room after being evacuated from their home on the outskirts of Donetsk that was constantly shelled, in Ukraine, Thursday, February 2, 2017. In the rebel stronghold of Donetsk, the self-proclaimed authorities said two civilians were injured Wednesday evening when projectiles hit their houses in Donetsk's north. (Photo by Alexander Ermochenko/AP Photo)





An elderly woman looks from her damaged flat after artillery shook Donetsk, eastern Ukraine, late Friday, February 3, 2017. Heavy shelling hit both government- and rebel-controlled areas of eastern Ukraine as fighting continues Friday, and international monitors issued a sharp call for the sides to still their guns. (Photo by Alexander Ermochenko/AP Photo)





A man smokes sitting on a bicycle as he waits to receive humanitarian aid at the humanitarian aid center in Avdiivka, eastern Ukraine, Friday, February 3, 2017. Strong shelling hit both government- and rebel-controlled areas of eastern Ukraine in a continued escalation of the country's fighting. (Photo by Evgeniy Maloletka/AP Photo)





A tank from the Ukrainian Forces is stationed outside a building in the flashpoint eastern town of Avdiivka that sits just north of the pro- Russian rebels' de facto capital of Donetsk on Febraury 2, 2017 Ukraine' s president appealed for more global pressure against Russia as Moscow- backed rebels and government forces clashed around a frontline town in a surge of fighting that has claimed a reported 23 lives. (Photo by Alexey Filippov/AFP Photo)





A local resident eats a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Local residents have a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





A local resident waits for a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





A serviceman prepares a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





A local resident waits for a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Local residents have a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Local residents have a hot tea at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Local residents receive hot tea at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





A local resident receives a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Local residents have a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Local residents have a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Local residents wait for a humanitarian aid at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





An armoured personnel carrier (APC) patrols near the building which was damaged during fighting between the Ukrainian army and pro-Russian separatists, in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





A local resident has a meal at an emergency center after shelling hit supply infrastructure in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





An armoured personnel carrier (APC) patrols in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Ukrainian servicemen patrol in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





A local resident walk near a building which was damaged during fighting between the Ukrainian army and pro-Russian separatists, in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Local residents are seen in a building which was damaged during fighting between the Ukrainian army and pro-Russian separatists in the government-held industrial town of Avdiyivka, Ukraine, February 3, 2017. (Photo by Gleb Garanich/Reuters)





Relatives react during a funeral ceremony for Ukrainian serviceman Leonid Derhach, who was recently killed during a military conflict in the east of the country, in Independence Square in Kiev, Ukraine February 3, 2017. (Photo by Valentyn Ogirenko/Reuters)





People take part in a funeral ceremony for Ukrainian serviceman Leonid Derhach, who was recently killed during a military conflict in the east of the country, in Independence Square in Kiev, Ukraine February 3, 2017. (Photo by Valentyn Ogirenko/Reuters)





A chaplain waits for a funeral ceremony for Ukrainian serviceman Leonid Derhach, who was recently killed during a military conflict in the east of the country, in Independence Square in Kiev, Ukraine February 3, 2017. (Photo by Valentyn Ogirenko/Reuters)





Members of the Ukrainian National Guard load humanitarian aid parcels for the government-held industrial town of Avdiyivka to a truck in Kiev, Ukraine February 3, 2017. (Photo by Valentyn Ogirenko/Reuters)





Members of the Ukrainian National Guard load humanitarian aid parcels for the government-held industrial town of Avdiyivka to a truck in Kiev, Ukraine February 3, 2017. (Photo by Valentyn Ogirenko/Reuters)





Ukrainian servicemen are seen at their position on the front line near the government-held industrial town of Avdiyivka, Ukraine February 4, 2017. (Photo by Gleb Garanich/Reuters)





A Ukrainian serviceman patrols at the humanitarian aid center in Avdiivka, Ukraine, Saturday, February 4, 2017. (Photo by Evgeniy Maloletka/AP Photo)





Ukrainian servicemen patrol near the humanitarian aid center in Avdiivka, Ukraine, Saturday, February 4, 2017. (Photo by Evgeniy Maloletka/AP Photo)





A boy carries a loaf of bread after receiving humanitarian aid in Avdiivka in Avdiivka, Ukraine, Saturday, February 4, 2017. (Photo by Evgeniy Maloletka/AP Photo)