The five men were apparently members of Islamic Jihad and the Popular Resistance Committees.
A Hamas website reported that an Israeli drone bombed the terrorists in an agricultural area.
The Maan news agency said four of the five terrorists have been identified. They resided in a refugee camp in central Gaza, the report said.
The strike followed a relatively violent month in the south. Two weeks ago the Air Force bombed three Hamas targets in Gaza, in response to mortar shell fire at Israel.
One Israeli man, the security officer at a community belonging to Eshkol Regional Council, was injured in an attack. No injuries were reported on the Palestinian side.
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