Multiple police cars were seen on St Albans Road, and one unmarked whilst a helicopter searched from above.
At around 3pm a police search helicopter was deployed, after a disturbance in Malden Road just after 2pm on Wednesday, October 13.
One witness reported seeing a police cordon in an area where a man had been stabbed.
Emergency Ambulance took the injured man to Hospital A&E, the injuries were not thought to be life changing or life threatening.
Police blocked off the Denmark Street while they went to apprehend and arrested a 17-year-old boy and a 20-year-old man, both from Watford, on suspicion of wounding with intent to do grievous bodily harm.
Evidence included a mobile phone were taken along with the two arrested into custody.
At 3:45pm most police vehicles left the scene.
At 4pm A police van was seen arriving.
Police are after any information regarding the incident and can be contacted on non-emergency number 101 quoting crime reference 41/79733/21.
(Main photo credit Aditya Isukapalli) other photos by WLnews