UPDATE — 3:55 a.m. ET: A U.N. agency now says 19 people were killed and 126 injured after shells hit a school in northern Gaza:
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GAZA CITY, Gaza Strip (AP) — A Palestinian health official says 13 people were killed after tank shells hit a U.N. school in Gaza where hundreds of Palestinians had taken refuge from Israeli attacks.
Gaza health official Ashraf al-Kidra said another 40 Palestinians were wounded in the shelling early Wednesday.
With displaced Palestinians still inside a youth walks by the debris in a classroom at the Abu Hussein U.N. school in Jebaliya refugee camp, northern Gaza Strip, hit by an Israeli strike earlier, on Wednesday, July 30, 2014. (AP Photo/Lefteris Pitarakis)
Adnan Abu Hasna, a spokesman for a U.N. aid agency, says tank shells hit the Abu Hussein U.N. school in the Jabaliya refugee camp around 4:30 a.m.
A displaced Palestinian boy, still inside a classroom, eats a snack at the Abu Hussein U.N. school in Jebaliya refugee camp, northern Gaza Strip, hit by an Israeli strike earlier, on Wednesday, July 30, 2014. (AP Photo/Lefteris Pitarakis)
An AP reporter who arrived later at the school saw what appeared to be tank shells in a bathroom and two classrooms.
The incident comes a day after Israel unleashed its heaviest air and artillery assault in the bloodiest day of the three-week Gaza war, destroying key symbols of Hamas control and shutting down the territory's only power plant.
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