Touring North Korea's rocket launch site

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In April 2012, the BBC's Damian Grammaticas was invited by North Korean officials to witness preparations for the launch

North Korea says it is ready to launch a long-range rocket that it says will send a satellite into space, despite warnings of sanctions if the launch goes ahead.

Pyongyang says the Unha-3 rocket is scheduled for launch between 12 and 16 April to mark the centenary of the birth of its late leader Kim Il-sung.

Foreign journalists were invited to witness the launch preparations at the Tongchang-ri launch site on the country's north-west coast. Here's my report.