Anti-war activists have staged protests in several cities around the world demanding the closure of the US prison camp in Guantanamo Bay, Cuba.
The demonstrations marked the fifth anniversary of the first "war on terror" detentions.
The facility was set up at a US base in Cuba after the invasion of Afghanistan to interrogate "enemy combatants".
About 75 of some 400 detainees are expected to face military tribunals, while others face indefinite detention without trial.
In London, crowds of protesters gathered outside the American embassy. Activists say the detainees should be either charged or released.
Muhammad and Anas El-Banna delivered a petition to the British prime minister for the release of their father Jamil El-Banna, held since 2003 on suspicion of having terrorism links.
In Cuba, a group of 12 international activists marched on the prison camp from the capital, Havana.
They included a British former detainee, Asif Iqbal, and family members of another man still being held at the naval base.
The protesters reached the end of the Cuban military zone which borders the US naval base, before they were prevented from going further by the Cuban authorities.