At least four people were hurt in a series of explosions in the Bureij refugee camp in the central Gaza Strip on Wednesday.
Officials in the Hamas-run interior ministry in Gaza called the incident a “work accident,” according to local media.
The explosions occurred at a home in the densely populated camp.
The four wounded have not been identified and their condition was not immediately known. All were taken to a local hospital, according to Hamas’s Al-Aqsa television.
Local security forces sealed off the area.
Many of the hundreds of incendiary devices launched into Israel since March originated in Bureij, which lies close to the border with Israel.
Hamas, an Islamist terror group that seeks to destroy Israel, seized control of the Gaza Strip in 2007.