Montreal police have arrested a 38-year-old man following an incident in the Metro earlier this month that left thousands of commuters stranded.Three lines of the Société de transport de Montréal (STM) network were shut down Jan. 9 after a situation deteriorated between two men at the Champ-de-Mars Metro station on the orange line.READ MORE: Jean Dumontier, architect and artist of Montreal subway stations, dies“One of them used pepper spray on the Metro platform,” said Caroline Chèvrefils, a spokesperson with Montreal police.WATCH BELOW: Could a compensation package improve Montreal’s public transit system?