The US state department has criticised Israel’s treatment of thousands of African asylum seekers who it says are being denied basic social services.
The US annual report on human rights says that many are refused refugee status, so cannot access health care.
It is estimated that up to 60,000 migrants, most from Sudan and Eritrea, have entered Israel in recent years.
The report also criticises Israeli government officials for referring to migrants negatively as “infiltrators”.
It cites statistics from the UNHCR which show Israel approved just one of the 4,603 new asylum applications it received last year.
The data also shows that more than 6,000 previous cases are still pending.
The US state department notes that Israel has ended the practice of immediately returning asylum seekers who had arrived through Egypt.
In 2010 Israel approved the construction of a barrier along its border with Egypt to try to stop migrants entering the country. Once complete it will run for 250km (155 miles) and include an electric fence and surveillance technology.
But it shows concern over regulations that allow the authorities to reject applications without appeal, and that there is no independent appeal process.