Hundreds of thousands of Amnesty International activists are calling for an end to arms transfers that fuel human rights abuses.
Just six countries are responsible for around three-quarters of the world's arms exports by value.
Decades after El Salvador's armed conflict, hundreds of families still search for children who were taken from them amid the fighting.
Amnesty International releases its flagship yearly report documenting the state of the world's human rights.
No one has claimed responsibility for the attack in the Colombian capital which killed two people and injured at least 50.
Five former paramilitaries have each been sentenced to nearly 8,000 years in prison for their role in one of the bloodiest mass killings of Guatemala's civil war.
Pedro Pimentel Ríos is the fifth former soldier in Guatemala to be convicted for his role in the 1982 killings of more than 250 people in a rural village.
A US immigration court has ruled that a former Salvadoran Defence Minister can be deported on the basis of grave abuses during the 1980s civil war.
Colombia's FARC guerrilla group have said they will no longer kidnap for ransom, but they have yet to renounce a host of other abuses.
A global "faxjam" action led by Amnesty International focuses on protection for a Peace Community that defends its right not to be drawn into armed conflict in Colombia.
Talks are under way at the UN to agree a comprehensive treaty to regulate the global arms trade, due to be finalized later this year.
Authorities urged to disclose details after US President Barack Obama confirms that the unmanned aircraft are used to target suspected militants.
Relatives of hundreds of massacre victims have triumphed in forcing retired General Ríos Montt to appear before a court on genocide charges.
For decades, families have sought justice for hundreds victims of a 1981massacre at El Mozote in El Salvador.
Four members of Colombia's security forces have been killed while being held by guerillas, a possible war crime.
A landmark court ruling in Guatemala sentences four soldiers for their involvement in a bloody massacre in Dos Erres village in 1982.
Amnesty International's annual report details how the rise of social media is fuelling a new activism that repressive governments are struggling to control.
Authorities urged to stop the high numbers of women being killed across the country and ensure perpetrators are brought to justice, ahead of International Women's Day.
Control Arms Coalition calls on countries meeting at the UN in New York this week to ensure no weapons or munitions are sold to human rights abusers.
Private Bradley Manning has been held for 23 hours a day in a sparsely furnished solitary cell and deprived of a pillow, sheets, and personal possessions since July 2010.