This article tells of the cruel plight of African refugees to Israel (before they get there):
Since 2005, there has been an influx of Africans to Israel. The vast majority who arrive today come from Eritrea...
More than 35,000 illegal African immigrants have reached Israel via Egypt, and most are thought to have paid traffickers at some point to help with their journeys. The traffickers did their part, but in early 2010 Israeli medics began to see signs of a sinister new business venture: Sinai traffickers holding their prey for ransom for large sums and using extreme abuse to nudge such "deals" along.
See also Mick's post on the same topic; it has a number of further links.