London (CNN) -- British Home Secretary Theresa May sat down with officials from the social media industry Thursday, her office said, as the government considers trying to ban people from social networking during or after crises. But the government "did not seek any additional powers to close down social media networks," the Home Office said. Twitter, Facebook, and BlackBerry maker Research in Motion all declined to say beforehand what position they would take at the meeting. Top police officers and other government officials were also present for the meeting, which follows riots that swept England earlier this month. Prime Minister David Cameron suggested limits on social networking in the wake of the unrest.
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NEW: The government did not seek new powers to shut down social media networks, it says
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Home Secretary Theresa May called a meeting with social media representatives and police after riots
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The government is considering "whether and how we should be able to stop people" from using sites like Twitter
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Two men were imprisoned last week for using Facebook to urge riots
Two men have been sent to prison for posts on @placeholder urging people to riot in northwest England.