Israeli forces on Friday carried out several air strikes on areas south and east of Khan Younis in the southern Gaza Strip, Palestinian media said.
At least four air strikes were carried out, amid heavy gunfire from Israeli warplanes and military vehicles.
In Rafah, Israeli helicopters also opened fire on residential areas, while navy boats fired into the waters on Gaza's southern coastline, targeting fishing boats.
The Israeli army also continued its home demolition operations in the war-battered enclave's eastern areas, and several neighbourhoods in Gaza City, including Al-Tuffah.
This came after Israeli troops killed at least three Palestinians on Thursday, who they say crossed the so-called Yellow Line, which demarcates the Gaza Strip, and put over half of the territory under Israeli control.
Two were killed in the enclave's south, after the Israeli military claimed they were "posing a threat" to them. The other Palestinian was killed in an earlier incident in Gaza's north.
Israel has violated its ceasefire agreement with Hamas hundreds of times since 10 October, when it came into effect, and has killed at least 411 people.