The diplomatic row which could prompt Europe’s next migrant crisis

A Western Saharan independence leader will appear in a Spanish court on Tuesday. The outcome of the case could see another humanitarian emergency emerge, reports Graham Keeley in Madrid

A migrant waits to sneak through the fence in the northern Morocco town of Fnideq in an attempt to cross the border to the Spanish enclave of Ceuta (EPA)

Hiding out in an old cemetery, a disused prison or in the hills in Ceuta, hundreds of children are trying to avoid being sent back from Spain to their old lives in Morocco.

They are the last of the children who flooded through the razor wire security fence or swam round into Spain’s North African enclave from Morocco two weeks ago.

Morocco stands accused of letting about 8,000 would-be migrants into Spain because of a diplomatic dispute which comes to a head on Tuesday, when a Western Saharan independence leader is due to give evidence via video link to a Spanish court.