Palestinian Authority Arab terrorists launched a rocket attack on the Ashkelon coastal area at around noon on Monday.
The missile, which was fired from Gaza, exploded in an open area in the Ashkelon Shore Regional Council district.
None of the residents were physically hurt, and no property damage was reported to authorities.
IDF bulldozers were allegedly spotted by PA Arab sources who reported that Israeli army engineers appeared to be clearing a buffer zone near the Gaza border west of the Erez Crossing.
The engineering operation appeared to be taking place in an area close to the location of an attack that took place earlier in the day.
A 36-year-old contractor from Haifa was killed while engaged in building the security fence along Israel's southern border. Two PA terrorists were killed in the ensuing clash with an IDF Golani Brigade unit that arrived to respond to the attack.