Police in Brazil have arrested a third person in connection with the rape of an American woman on a minibus in Rio de Janeiro.

Carlos Armando Costa dos Santos was arrested Monday night, police said.

The woman boarded the minibus with another tourist in the Copacabana beach district in Rio de Janeiro early Saturday. Three men subsequently boarded the minibus and forced off all the other passengers, police said.

The woman was raped, and the other tourist, a man, was held captive and robbed, authorities said.