ISIS slaughter whole families who refuse to let snipers set up killing posts in their homes
The United Nations says it has evidence innocents were shot dead in Mosul
ISIS fighters battling for survival in Mosul have killed at least a dozen civilians for not allowing snipers and heavy artillery to set up camp in their homes.
The United Nations says it has evidence families were shot dead in the Bakir area of the city by gunmen wanting to use their properties to target the enemy.
Isis has been killing alleged spies for months as the noose tightened around the largest city left under their control.
It is feared that the jihadists are planning to use thousands of civilians as human shields, preventing them from fleeing Iraq's second city.
The UN says that ISIS also slaughtered 27 people in Muhandiseen Park, in the north of Mosul, accusing them of passing information to Iraqi security forces.
A spokeswoman for the UN high commissioner for human rights, Ravina Shamdasani, said international human rights law are being breached by terror warlords.
"[IS] has been installing rocket launchers and placing snipers on the rooftops of civilian houses," she said, according to the .
"Those who refuse to allow their houses to be used in this way are threatened or killed. These families are effectively used as human shields, placed squarely in harm's way, caught between IS and Iraqi Security Force fire responding to rocket and sniper attacks."
The claims come as around 650,000 people in the city have been left without water after a crucial pipeline was damaged during ongoing fighting between the Iraqi army and the militants.
Iraqi authorities are not believed to be planning to repair the damage, due to the danger posed by the fighting.
Shamdasani added that the Islamic extremists are continuing to abduct and forcibly move civilians living in Mosul.
Reports have also emerged suggesting that ISIS has shot dead fleeing civilians, including a seven-year-old child who was running towards troops in the eastern Adan district.