A court in Pakistan has charged former military ruler Pervez Musharraf with treason, the first army chief to face such a prosecution.

Mr Musharraf is accused of unlawfully suspending the constitution and instituting emergency rule in 2007.

He pleaded not guilty and has always claimed that the charges against him are politically motivated. He faces the death penalty if convicted.

President from 2001 to 2008, he was one of Pakistan's longest-serving rulers.

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