The raid by the Israeli Air Force struck a police post in Khan Younis, Ynetnews reported.
The military wing of Hamas took credit for the rocket attack, which occurred about two hours later. One rocket hit a house, injuring a woman, Ynetnews said.
Earlier in the day, two factories were damaged by a rocket attack.One building was hit by a Qassam rocket that caused damage to the structure and its contents, while the second factory was slightly damaged by a rocket that hit the parking lot.
Only minor injuries were reported.
The attacks occurred a day after a suicide bombing in Dimona killed an elderly woman. Two bombers died. One of them was shot by police.