An explosion tore through a house in a popular market in the Gaza Strip on Thursday, killing one person and wounding 10, the Palestinian territory’s interior ministry said.

It was not immediately clear what caused the explosion.

The blast in the Al-Zawiya area collapsed large parts of the house and damaged dozens of buildings and shops nearby, according to the statement. Explosives engineering teams were investigating; civil defense teams and the police were able to control the ensuing fire.

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The blast shook the neighborhood on the third day of Eid al-Adha, a Muslim holiday.

The Israeli army signaled it wasn’t involved, calling the explosion an “internal” matter in Gaza.

(AP)