The military reported a total of four targeted killings of members of Hamas' military wing.
One of those killed is said to have been involved in transferring funds to the militant group.
The Hamas members had also been preparing attacks on Israeli soldiers and civilians and working to rebuild Hamas' strength, the military said, adding that this constituted a violation of the ceasefire agreement.
"The terrorists were eliminated to remove the threat they posed," the Israeli military said.
The Palestinian news agency WAFA had reported several fatalities in Israeli strikes in the Gaza Strip on Thursday, including in the north of the territory.
The Israeli military also said it had destroyed a two-kilometre-long tunnel in the Gaza Strip.
Footage released by the military showed explosions at several points along the underground route.
A ceasefire has technically been in place in the Gaza Strip war since October 2025 but deadly strikes have continued.
Israel recently stepped up its air strikes again, killing what it described as senior members of Hamas in targeted operations.
Israeli Prime Minister Benjamin Netanyahu said this week that Israel would "not stop until Hamas no longer exists in the Gaza Strip".
Under a US-backed peace plan, both sides are required to halt hostilities, with Israeli forces permitted to act in self-defence only in response to specific threats.
When carrying out targeted strikes in the Gaza Strip, the Israeli military typically says those targeted had been planning attacks on Israeli soldiers or civilians.
Israel's military also reported on Friday morning that two soldiers had been killed in the Gaza Strip.
According to Israeli statements, they died on Thursday in an accident involving a drone.
