Darien police arrested a Subway employee accused of secretly recording people in the bathroom of the restaurant.
While investigating, police said they discovered the man was in the country illegally and reported him to immigration officials.
Police received a complaint on Wednesday that a “spy camera” had been installed in the unisex bathroom of Subway at 22 Heights Road.
Police reviewed the camera footage and said it showed three people had been unknowingly captured on video.
It also showed Marco Dias, 21, of Bridgeport, a Subway employee suspected of setting up the camera, police said.
Police obtained a warrant and took Dias into custody at the restaurant at 1:15 p.m. on Thursday, charging with three counts of voyeurism, a Class D Felony.
Dias was held on a $25,000 bond, but police discovered that Dias is in the United States illegally and the department contacted the United States Immigration Service, which has placed a detainer on Dias, so he is being held indefinitely.
Dias had no prior criminal history, police said.
At 5 p.m. on Thursday, police searched Dias’ house and said they found an additional “spy” type camera and computer equipment.
Officers will examine the evidence as the investigation continues.