US President Barack Obama
Media playback is unsupported on your device

President Obama announces China rare earth trade case

13 March 2012 Last updated at 17:00 GMT

US President Barack Obama has said he is taking China to the World Trade Organisation over its export restrictions on rare earth minerals.

Mr Obama made the announcement on the same day as China defended its restrictions on the exports.

He said it was important to take the step in order to protect US businesses and jobs.