The district was cordoned off by the military firing alongside Kurdish militants, the correspondent reported. Several ambulance crews have arrived at the scene to pick up the wounded.
Earlier, the city mayor told RIA Novosti that out of the 70,000 Sur residents, 50,000 had left their homes.
Tensions in Turkey escalated in July 2015, after 33 Kurdish activists were killed in a suicide blast in the city of Suruc and two Turkish policemen were later murdered by the PKK, which led to Ankara's military campaign against the group.
The Kurds, Turkey's largest ethnic minority, are striving to create their own independent state. The PKK was founded in late 1970s to promote the self-determination for the Kurdish community.
Turkish President Recep Tayyip Erdogan said in his New Year’s statement that Turkish security forces killed 3,100 PKK militants in 2015.