The operation was carried out by members of the divisional Roads Policing Unit
More than a dozen motorists have been issued with fines after they were caught holding a mobile phone while driving in a bus lane in the city.
The detections were made by members of the Roads Policing Unit during an operation in the Castletroy area of the city earlier this week.
According to a post on social media, of the 19 motorists who were stopped, 15 were holding or using their mobile phones.
Fixed Charged Penalty Notices were issued in each case and court proceedings will be initiated of the fines are not paid.
While driving in a bus lane is not penalty points offence, driver caught holding a mobile phone will receive three penalty points on their licence.