Israel has carried out airstrikes against targets in the Gaza Strip for the first time since an August truce.
Confirming the early Saturday strikes, the Israeli military said they were launched in retaliation for a rocket shot from Gaza into southern Israel on Friday. The rocket did not cause any injuries.
The military said the airstrikes targeted a "Hamas terror infrastructure site."
Lieutenant Colonel Peter Lerner, an Israeli military spokesman, said in a statement Friday that the "Hamas terrorist organization is responsible and accountable for today's attack on Israel."
Israel and Hamas, the Palestinian group that rules Gaza, fought a 50-day war this year. The United Nations estimates 1,523 Palestinian civilians, including 519 children, and six Israel civilians were killed in the Gaza conflict. The two sides agreed to a cease-fire in August.
In a separate incident on Friday, four Palestinian protesters were shot in the legs by Israeli troops after they ignored warnings to keep away from the border fence between the coastal territory and the Jewish state, the military and Gaza medical officials said.
Some information for this report came from Reuters.