Israeli military said a Palestinian militant was killed when he opened fire at IDF troops stationed on the Gaza border early Sunday. Sources in the enclave said the militant belonged to Hamas' military wing.
There was no immediate comment from Palestinian officials or from any of Gaza's militant groups.
It was the second such incident since Saturday, when Israeli troops thwarted a major attack when four heavily armed Palestinians carrying armed with Kalashnikov rifles, hand grenades and rocket propelled grenade launchers attempted to cross the volatile border.
They were shot and killed by a force of troops from the Golani Brigade.
"IDF (Israel Defence Forces) troops spotted an armed terrorist approaching the security fence in the northern Gaza Strip. The terrorist opened fire towards the troops," the military said in a statement.
The soldiers returned fire and an Israeli tank fired at a post belonging to Hamas, the Islamist armed group that rules Gaza.
The IDF said no Israelis were hurt in the incident.
Hamas has fought three wars with Israel over the past decade and tensions along the border are high with frequent fatalities.