US to probe claims Sikh turbans taken at border with Mexico
According to human rights advocates, nearly 50 migrants have had religious headgear taken away.
Sikhism requires that men wear turbans and do not cut their hair.
Record numbers of migrants from India have been detained at the US-Mexico border in recent months.
Many hail from India's Punjab, where more than half of residents are Sikh.
The American Civil Liberties Union (ACLU) has said the turban confiscations "blatantly violate federal law" and are inconsistent with the CBP's own non-discrimination policies.
In a letter sent to US Customs and Border Protection (CBP) Commissioner Chris Magnus on 1 August, it called the seizures "ongoing, serious religious-freedom violations".
Lawyer Vanessa Pineda, of the ACLU of Arizona...