Israeli aircraft attacked the Gaza Strip overnight, after militants in the salient fired projectiles into Israel, the Israeli military and Palestinian witnesses said Wednesday morning, dpa reported.
It was the first Israeli airstrike on the enclave since November's 8-day Israeli air assault.
The military said the aircraft targeted "two extensive terror sites in the northern Gaza Strip." The strikes were "in response to several rocket fire incidents directed at Israel," it said.
No injuries were reported.
On Tuesday, a projectile fired from the Strip landed in southern Israel, but caused no injuries. Other rockets and mortars launched from Gaza failed to land in Israel, the military said.
Earlier, the remains of a rocket were found near a kindergarten in Sderot, the Israeli town adjacent to the Strip. The rocket was most likely fired during the visit to Israel last month of President Barack Obama.
The rocket's remains were located earlier because the kindergarten had been closed for the Passover holiday.