(BBC NEWS) Fake news has been widely circulating on Indian sites and social media this week, claiming a civil war had broken out in the Pakistani city of Karachi.
The reports emerged after local Pakistani media said troops had kidnapped the provincial police chief to force him to arrest a top opposition leader.
The story was quickly picked up over the border in Pakistan's arch-rival, India, where reports went much further - saying clashes between the police and the army had resulted in the deaths of many Karachi police officers and tanks had been seen on the streets.
A fake video circulating on Twitter even claimed to show some of the alleged unrest.
In reality, none of it was true.
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