Palestinian militants in the Gaza Strip fired two rockets into southern Israel on Thursday, and Israel's military responded with a pair of airstrikes, officials said.

The rockets from Gaza fell in open areas, causing no damage or injuries, Israel's military said. It said its aircraft then hit a weapon manufacturing facility and a weapon storage facility in the enclave, which is controlled by the Islamist group Hamas.

One Palestinian was wounded by the airstrikes, medical workers said.

The cross-border violence followed a flare-up on Tuesday in which a Gaza sniper shot dead an Israeli civilian over the border.

Israel hit back with airstrikes on two Hamas training camps which hospital officials said killed a Palestinian girl near one of the targets.