An Israeli airstrike Saturday targeted an Islamic Hamas movement's military site in southern Gaza Strip, security sources said.
The airstrike caused severe damage to the military site which is used by members of Hamas armed wing, security sources told Xinhua.
Witnesses said the airstrike caused a huge explosion and damaged neighbouring houses.
The airstrike came a few hours after a missile was launched from Gaza into Israel.
On Wednesday, a Palestinian militant was killed in northern Gaza in an Israeli drone attack after militants in Gaza carried out a rocket attack on Israel.