Police found 112 cannabis plants in a North Watford house during a drugs bust.

Hertfordshire Constabulary were called to reports of suspicious activity at an address in Sheepcot Lane at around 4.10am on May 12 and made four arrests.

All four have now been bailed as investigations into the "cannabis factory" continue. Although the force has now confirmed that there were 112 plants found in the house, the street value of the drugs has not yet been calculated.

Watford Observer: Police in Sheepcot LanePolice in Sheepcot Lane (Image: Submitted)

In the afternoon of May 12, a police spokesperson said: “Officers attended and found a large-scale cannabis factory inside the property, which is currently in the process of being cleared.”

A large police presence was spotted in the Sheepcot Lane during the morning.

Several residents described the scene on social media with one saying they saw “about 20 different police vehicles there” which remained in the road for hours.

Watford Observer: Police found a cannabis factory in a home in Sheepcot Lane.Police found a cannabis factory in a home in Sheepcot Lane. (Image: Submitted)

Updates to follow.