... Sderot, Ashkelon, Ashdod and Be'er Sheva all lie within the Arab partition of UNGA Resolution 181 (Partition Plan). This was the border declared by Israel on its creation in 1948 and immediately recognised the US and others. The border has never changed, and therefore until a peace-deal is reached and final borders are set, all of these towns/cities lie on occupied Palestinian land and are not "Southern Israel".
Man shot dead in northern Israel town of Bi'ina, police say the murder was gang related (Haaretz)
from the article: Israel hits Gaza for second time in 24 hours after mortar barrage