The Israeli army said on Wednesday that three soldiers had been killed while trying to destroy a booby-trapped tunnel inside the Gaza Strip.
"Three soldiers were killed today inside the Gaza Strip," a spokeswoman told AFP.
In a statement, the army said they had been killed "while uncovering an offensive tunnel shaft in a residence in the southern Gaza Strip.
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"The house and the tunnel were booby trapped with two explosive devices that were detonated against the soldiers," it said.
The attack was claimed by Hamas's armed wing, the Ezzedine al-Qassam Brigades, which claimed to have killed a group of soldiers during the bombing of a house in Khan Yunis where they were operating, in a statement was issued earlier in the day.
Another 27 soldiers were wounded in other incidents inside Gaza, the army said.
Media reports said the three soldiers had been killed and 15 wounded when a wall collapsed on them.