( CNN ) -- After a rocket landed late Saturday in its territory , Israel retaliated by going after `` two terror activity sites in the southern and in the central Gaza Strip , '' its military said . Israel Defense Forces said on its blog that the rocket fired out of Gaza landed in Sdot Negev Regional Council around 11 p.m. ( 6 p.m . ET ) , spurring sirens to go off there . The military subsequently tweeted that there were `` no injuries . '' An IDF spokesman told CNN that the rocket caused no notable destruction , having landed in an open area . That led to Israel 's retaliatory strike against targets that IDF spokesman Lt. Col. Peter Lerner said are `` part of the terrorist support network , enhancing terror capabilities against Israel and it civilians . '' `` As long as Hamas enables its henchmen to attack Israel , these sites will not be immune from our watchful eye and operational strike , while they are used to formulate , train and develop malicious terrorist intentions , '' Lerner said in a statement . CNN 's Greg Botelho contributed to this report .
Israel claims a rocket fired from Gaza landed , causing no injuries . Israel 's military responds by going after ` ` ' terrorist activity groups '' in Gaza .