A new advance by Israeli forces in the southern Gaza Strip city of Khan Younis has resulted in dozens of Palestinian casualties, including women and children, medics said on Monday. The army attacked in the east of the city, witnesses said. At least 39 Palestinians were killed and 80 more were injured, according to hospital staff in Khan Younis. The information could not be independently verified. The Israeli military previously called on residents in the eastern part of the city to leave the area immediately. It said that members of the Hamas militia were carrying out rocket attacks on Israel…