The Israeli airstrike is the latest in several days of cross-border hostilities, breaking a cease-fire that had mostly held since January.
The trade of fire is the latest in a string of recent cross-border hostilities that follows a period of relative calm. A cease-fire has largely held since the end of Israel's war in Gaza in January.
The attacks come as Israel released the first of 20 female prisoners it promised to let go in exchange for a video proving that Gilad Shalit, an Israeli soldier captured by Hamas in 2006, is still alive, reports The Jerusalem Post.
Agence France-Presse reports that the most recent rocket and tunnel attacks caused no casualties. On the same day, Palestinian militants fired mortars into Israel near the Kissufim crossing between Israel and Gaza. The Israeli army responded with tank fire.
YNet News, an Israeli news website, reports that Wednesday's exchange is only the latest in a series of incidents that began on Saturday, when the Israeli air force killed three Islamic Jihad militants allegedly planning to launch rockets into Israel. Militants responded by launching a Qassam rocket into Israel, and the two sides traded fire until Tuesday night, when Israeli warplanes attacked three smuggling tunnels after Palestinian militants fired two Qassam rockets into Israel.