article_snippet: Video from the scene aired by CNN affiliate GEO News showed twisted metal, shattered glass and panicked residents outside a church compound.
article_snippet: Ambulance and security personnel were seen moving in.
article_snippet: Later footage showed water cannons arriving to disperse the crowd.
article_snippet: CNN's Sophia Saifi reported from Karachi, Pakistan, and Jethro Mullen wrote from Hong Kong.
article_snippet: CNN's Brian Walker and journalists Saleem Mehsud and Adeel Raja contributed to this report.