Hundreds of children from around the world are gathering in Geneva for the final stage of a global march against the use of child labour.

The march started in the Philippines in January, with other strands joining later from Latin America, Africa and Europe.

Many of those taking part have themselves been child workers in rice fields, clothing sweatshops or construction sites.

The BBC correspondent in Geneva says the organisers have urged developing countries to do more to end child labour, arguing that poverty is no excuse for exploitation.

Next week, an international conference opens in Geneva to discuss a new convention aimed at eliminating the worst forms of the abuse.