The Israeli military says it has carried out an airstrike against a group of Gaza militants placing explosives along the border.
The Palestinian Health Ministry says a 31-year-old man was killed in Wednesday's strike and three others were wounded.
The attack marked a rare flare-up along the Gaza border, which has remained largely calm since a 50-day summer war in 2014.
Some clashes have erupted along the border in recent months but most of the confrontations and violence has taken place in Jerusalem and the West Bank. Palestinian attacks on Israeli civilians and soldiers have killed 24 people.
At least 141 Palestinians have been killed by Israeli fire since mid-September. About two-thirds of them are said by Israel to be attackers. The others were killed in clashes with troops.
