The World Health Organisation has adopted a treaty aimed at cutting the number of smoking-related deaths.
The WHO estimates that almost five million people around the world die every year from smoking-related illnesses.
At the organisation's annual assembly in Geneva, all 192 member states voted for the measure.
The treaty will impose restrictions on the advertising, marketing and sale of cigarettes and other tobacco products.
The Framework Convention on Tobacco Control, which is the first international agreement committing governments to deal with a public health issue, will take effect after the 40th of the WHO's member states ratifies it.
WHO Director General, Gro Harlem Brundtland, said the treaty was "a victory for global co-operation to promote public health".