A 22-year-old Eritrean man died of tuberculosis exacerbated by severe malnutrition after being rescued at sea and brought to Italy, showing how dire conditions are in Libya for migrants, aid workers said on Wednesday.

Huge numbers of migrants have converged on Libya in recent years in the hope of crossing the Mediterranean to Europe, and many of those who avoid drowning are arriving in Italy in terrible physical shape.

On Monday, a ship run by Proactiva Open Arms, a Spanish charity, brought 93 people including the Eritrean to Italy after rescuing them on Sunday from an overcrowded rubber boat off Libya. The man, Segen, whose full name was not given, disembarked in Pozzallo, a port on the southern coast of Sicily.