Four illegal aliens were arrested on Saturday in Chicago after being accused of robbing and strangling a man on the city’s Pink Line train.

The four men reportedly attacked and robbed a 48-year-old man on the train near the Kostner Avenue station at around 4:45 p.m. on February 17, the Chicago Police Department (CPD) said, according to CWB Chicago.

CPD officers arrested the four men at the next station and discovered that they were all staying at the Standard Club migrant shelter downtown, only blocks away from the Art Institute of Chicago.