Shervan Derwish the spokesperson of Manbij Military Council (MMC) has said the Turkish army on Wednesday morning has used phosphorus bombs in the shelling Qert Weran, Girhuyok, and Qawiqli villages in western Manbij.
Derwish said that the villages are residential areas where a huge population lives, which could lead to a massacre if it continued.
The Turkish army have been using airstrikes in and around Manbij to attack MMC and Syrian Democratic Forces for the past 15 days.
Phosphorus bombs are considered chemical weapons and cause severe burning. The use of white phosphorus is prohibited by chemical weapons treaties.