The Mexican president, Felipe Calderón, has unveiled a “No More Weapons” advertising board, made using crushed firearms, near the US border and urged the US to stop the flow of weapons into Mexico.

The board, which is in English and weighs three tonnes, stands near an international bridge in Ciudad Juarez and can be seen from the US.

Calderón said its letters were made with weapons seized by local, state and federal authorities.

For more on this story, visit: ‘No More Weapons’ billboard placed on US-Mexican border | World news | guardian.co.uk.