Hatfield 'police chase' was training exercise
PUBLISHED: 11:53 16 November 2016 | UPDATED: 11:55 16 November 2016
Cars spotted chasing around a roundabout in Hatfield were part of a police training operation.
The cars were seen chasing around the roundabout near Travellers Lane at around 11.30am today, according to one eyewitness.
Police have confirmed that the officers were not responding to a crime but were taking part in a police training exercise.