SAN JUAN, Puerto Rico — Puerto Rican singer Farruko was accused on Wednesday of hiding nearly $52,000 in undeclared cash in his luggage and his shoes when he arrived in the U.S. territory via helicopter from a trip to the Dominican Republic.

The U.S. Attorney’s Office said the singer, whose name is Carlos Efren Reyes, was arrested on charges of failing to declare transportation of monetary instruments in excess of $10,000 and bulk cash smuggling into the United States.

Farruko was being held without bond and was scheduled to appear in court Wednesday afternoon.