Demonstrators (clockwise from left) in London, Beirut, Khartoum and Nairobi protest over detention of three Al Jazeera journalists
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Global demos for jailed Al Jazeera trio

A protest has been held in London and cities across the world calling for the release of four journalists imprisoned in Egypt.

Protests have been held in dozens of cities across the world calling for the release of three journalists imprisoned in Egypt.

Australian Peter Greste, Mohammed Fahmy, a Canadian-Egyptian, and Egyptian national Baher Mohamed were all detained by authorities in December.

Demonstrators in many places, including London, Beirut, Nairobi and Khartoum, took to the streets wearing tape over their mouths to protest at the men's detention.

Speaking in Trafalgar Square, London, Al Jazeera English correspondent Sue Turton said the protest is aiming to "to keep the pressure on the Egyptian government".