Israel launched new airstrikes on the Gaza Strip early Wednesday, security sources from the Palestinian Islamist movement Hamas, which governs the enclave, confirmed.

The air offensive is in response to the launching of dozens of incendiary balloons on Tuesday by Hamas sympathizers across the border from Israel in protest at the holding of the "Parade of Flags," an Israeli ultra-nationalist march through Jerusalem.

The same sources said that unmanned Israeli Defense Forces reconnaissance drones flew over the coastal enclave around midnight before explosions were heard in the south and center of the Strip.

The attacks, as confirmed by Hamas and eyewitnesses, targeted military installations belonging to the al-Qassam Brigades, the armed wing of that Islamic movement, with no casualties reported for the moment.

Fighter jets attacked military compounds of Hamas in response to the launching of incendiary balloons from the Gaza Strip into Israeli territory, the IDF said in a statement.