Spain and Morocco are to hold a summit today in the Spanish city of Seville.Top of the agenda is illegal immigration.Prime Minister Jose Luis Rodriguez Zapatero and his Moroccan counter part, Driss Jettou, are only too aware that the close proximity of their countries is throwing up particular problems. A police video clearly shows African immigrants trying to break through border fences around the Spanish enclave of Melilla on the north african coast. The activity, filmed Tuesday night, resulted in almost 30 injuries as around 500 people used makeshift ladders to scale three metre high fences. Police have logged 12,000 attempts to enter Melilla this year alone.Many end up injured and at least two peole have died. Spain has owned the two enclaves Melilla and nearby Ceuta since the late 15th century. Many immigrants are desperate to enter into Europe and this is one way.Once over the fences almost all can claim asylum, although fewer than 10 percent of these applications are successful. But these assaults on the enclaves are just the tip of an iceburg and Spain is in the front line of a general increase in African migration..