(CNN) -- Eleven people -- including eight children -- died in an explosion Monday morning in eastern Pakistan, a hospital official said.
Fifty to 60 people with injuries were taken to an area hospital, said Dr. Naeem Sadiq.
The blast occurred in Mian Channu, 368 kilometers (228 miles) south of the capital, Islamabad.
Police found large explosives, including two suicide jackets and five or six rockets, buried under the rubble, said Kamran Khan, district police officer.
A rescue operation was under way to pull out people from the rubble, Khan said, adding that 40 houses were destroyed.
Local media reported that the blast happened in a house used to teach religious education to young girls, but no further details were immediately available.
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