Tripoli eyewitness: city of fear and silent protests

While Col Gaddafi's forces make advances on rebel-held territory, the capital is reported to be quiet but tense. One Tripoli resident - who did not want to be identified for his own safety - described the latest scenes to the BBC.

In recent weeks, the mobile phone service that allows users to check their credit has stopped working.

You now get a message saying "Unknown application" instead of the usual "Your credit balance is…"

Several people had already noticed that phone calls appear to be free - despite endless conversations, the credit never runs out.

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