"This is a serious escalation. Israeli occupation is playing with fire. It is responsible for the consequences. The opposition has the right to protect its people," Hamas said.
Earlier in the day, the Israeli Defense Forces (IDF) said that IDF and the country's ground forces "responded immediately" to a Palestinian sniper attack on IDF in southern Gaza Strip.
"Following the sniper attack on the #Gaza border, #IDF air & ground forces responded immediately to the threat," the IDF press service said Wednesday on its Twitter account.
On August 26, the Palestinian Authority and Israel agreed to an open-ended ceasefire. The truce followed a June Israeli-Palestinian clash after Israel blamed Hamas, the de facto authority in Gaza, for the death of three Israeli schoolboys. Israel responded with the launch of the Protective Edge operation.
According to the United Nations, more than 2,000 Palestinians, mostly civilians, and more than 60 Israelis died during the operation.
