Israeli aircraft and tanks hit targets across the Gaza Strip Friday after shots were fired at troops on the border, the army said, with Hamas reporting three members of its military wing killed.

A fourth Palestinian was shot dead during protests along the frontier with Israel, Gaza s health ministry said.

The flare-up is the latest in months of tensions that have ratcheted up fears of a wider conflict between Israel and Gaza s rulers Hamas, who have fought three wars since 2008.

An Israeli army statement said shots were fired at troops during renewed protests along the Gaza-Israel frontier and “in response… aircraft and tanks targeted military targets throughout the Gaza Strip.”

It did not say if any Israeli soldiers were hurt in the shooting.

Two Palestinians were killed in a strike east of Khan Yunis in southern Gaza, the health ministry in the enclave said.

A third man was killed by Israeli fire east of Rafah, also in southern Gaza, the ministry said.

The military wing of Islamist group Hamas named the three men as Shaban abu Khatar, Mohammed abu Farhana and Mahmoud Qushta, saying they were fighters.

Israel s military said its aircraft and tanks had targeted “eight military posts” belonging to Hamas.

A fourth man named as Mohammed Badwan was later shot dead by Israeli forces during protests along the border, Gaza s health ministry said.