A 19-year-old girl was raped allegedly by the staffs of a catering company on the Chattogram-bound Udayan Express train in the early hours of Wednesday.

The incident took place around 4:30 am on Wednesday, said SM Shahidul Islam, officer-in-charge (OC) of Chittagong Railway Police Station.

Police arrested three employees of SA Corporation, the catering company that supplies food to trains, in connection with the rape, he added.

The arrestees are Md. Jamal (27), Md. Sharif (28), and Md. Rashed (27).

The railway authorities have also temporarily suspended Abdur Rahim, a guard of the train.

The victim, who hails from Bandarban, used to live with her relatives in Bhairab.

Police said the victim boarded the Udayan Express train from Bhairab at 10 pm on Tuesday, intending to travel to her home in Chattogram. She was in the dining coach when the incident occurred.

The accused violated her while the train was passing through the Laksam area.

Mohammad Moniruzzaman,  manager of Chittagong Railway Station, stated that no formal complaint has been filed yet regarding the rape incident.

However, the train's guard, Abdur Rahim, has been suspended in connection with the incident, he added.

The arrestees were sent to the court and a seven-day remand prayer was filed for further investigation, said the OC.

The victim would be sent to the One Stop Crisis Centre of Chittagong Medical College Hospital under police custody, added the officer.