"The Turkish military offensive in Syria is a dangerous escalation that will lead to a humanitarian catastrophe, strengthen the ability of terrorists to reorganize their remnants, and pose a threat to regional and international security," Saleh said in a tweet to the Baghdad Post on Monday.
He also called on the international community to unite to cope with the disaster and support a political solution to ease the suffering of the Syrians, and the Kurds in order to enjoy their rights in peace and security.
Turkish offensive in Syria has been widely condemned by Arab and European countries. Turkey launched a military operation against Kurdish fighters in northeast Syria on Wednesday just days after U.S. troops pulled back from the area.
Turkish President Tayyip Erdogan claimed the aim was to eliminate what he called a “terror corridor” on Turkey’s southern border.
Turkey had been poised to enter northeast Syria since U.S. troops, who have been fighting with Kurdish-led forces against ISIS, started to leave in an abrupt policy shift by U.S. President Donald Trump.
The Kurdish-led force in northeast Syria said Turkish bombing of the border region killed five civilians and injured dozens more.
The Syrian Democratic Forces (SDF) also reported three of its fighters were killed.