Police arrested a 53 year old man on suspicion of four counts of sexual assault following incidents in Derry City and onboard a train between Derry and Ballymoney on Monday evening last.
Two women reported being approached and sexually assaulted at their place of work in Foyle Street at around 5.30pm.
A third woman was then approached and assaulted also on Foyle Street at around 6pm.
Another report then described a similar suspect having approached and assaulted a woman onboard a train travelling between Derry and Ballymoney at around 8.15pm.
Inspector Armour has said: “The suspect has been interviewed on suspicion of these offences and will return for further questioning at a future date”.
