On the evening of the 4th, Israel's Channel 12 TV quoted senior U.S. officials as reporting that Iranian Kurdish anti-government armed groups stationed in Iraq have launched a ground offensive from the country's north into Iran.
The Jerusalem Post also reported that Israeli and American officials have confirmed to them that thousands of Kurdish fighters have begun ground activities inside Iran from the Iraqi border region.
According to The Times of Israel, it is believed that there are several thousand soldiers within the Iranian Kurdish anti-government armed groups in Iraq. Their involvement could pose a challenge for Iran and may further draw Iraq into the conflict.