Palestinian medical officials say an Israeli airstrike has killed two Palestinian militants in the northern Gaza Strip.

The Israeli military has confirmed the attack, saying its helicopter targeted two men who were firing rockets across the border into Israeli territory.  The Islamic Jihad militant group claimed responsibility.

The airstrike was launched after rockets fired from northern Gaza exploded in the Israeli town of Sderot.  One Israeli was wounded.

Earlier Sunday, Israeli soldiers shot and killed two Hamas gunmen in northern Gaza.  The Israeli army confirmed that its troops shot two Palestinians who approached the border fence.

Israeli troops often shoot at Palestinians who approach the fence in an effort to prevent infiltrations by militants.  Israel also conducts raids into Gaza to stop militants from launching rockets into Israel.

Some information for this report was provided by AFP, AP and Reuters.